yashsingh1/xdaforums huggingface dataset:
[myTouch 3G, Magic General] bcrook:
Mine shows that as well. The S-OFF is good...that means "security off" (See here.

Unless you are having problems don't worry about it...it looks exactly like mine does and mine works fine. The data flash should work now.
[myTouch 3G, Magic General] guaiwujia:
Thanks for your relpy

i just got a X01HT too. But it works not so good now.
[myTouch 3G, Magic General] XperiHans:
Can someone upload the original NL / UK SPL from Vodafone? I need it very badly to get my OTA Updates working again... please, please, please :)
[myTouch 3G, Magic General] Bayangan:
Indonesia HTC Magic:

Sapphire PVT 32A SHIP S-0N H

HBOOT-1.33.0010

CPLD-12

RADIO-3.22.20.17

Jul 2, 2009

Is there a way to turn the S from on to off? Because I've read the SPL 1.33.0010 is not root-able yet.

Is there posible to open the case and do hard wired to make it flash able?

Thanks.
[myTouch 3G, Magic General] dferreira:
Hum... I don't think anyone has done a hardware hack yet on the HTC Magic in order to crack the 1.33.0010 SPL :(

Maybe the best suggestion is to sell that phone and get a new one.
[myTouch 3G, Magic General] Bayangan:
IC...

Is there anyone in Australia or Singapore that know where I can buy HTC Magic that is not S-ON or not "perfected SPL"?
[myTouch 3G, Magic General] oaussieo:
Phone info

SAPHIRE PVT 32B SHIP S-ON G

HBOOT-1.33.0006 (SAPP30000)

CPLD-10

RADIO-2.22.19.26I
[myTouch 3G, Magic General] ricardomega:
Orange (PL) HTC Magic

Hi All,

My device bought from Orange in Poland, gives me this info on the fastboot:

SAPPHIRE PVT 32A SHIP S-ON H

HBOOT-1.33.0009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17

May 8 2009,21:02:32

Regards to all :D
[myTouch 3G, Magic General] Bayangan:
I think your SPL also in the "Perfected" list that cannot go on fastboot mode... :( CMIIW
[myTouch 3G, Magic General] ricardomega:
Update radio too?

Hi Amon Ra,

I've exacly the same device model as you:

SAPPHIRE PVT 32A SHIP S-ON H

HBOOT-1.33.0009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17

May 8 2009,21:02:32

My question is.. I read in other threat that I have to update the radio first and than the SPL 2005, right? Just checking ;)

Thanks in advance!
[myTouch 3G, Magic General] HellHitZ:
Just got my Portuguese Magic. It's a 32A with HBOOT-1.33.0009 SPL.

Flashed 2005 without a problem, thanks :)
[myTouch 3G, Magic General] gavindi:
Hi,

I have a 32B that I bought and it had 1.33.2005 SPL on it from the last owner. I read here on this thread that this SPL should be for the 32A.

I have also noticed a pattern that any ROMs ported from the Dream will not run on my Magic although most other report success. I end up with a boot loop as the Android splash screen.

I have a sneaking suspicion that it may have something to do with my SPL? Does this sound plausible?

Is it safe to downgrade 1.33.2005 to 1.33.2004 on a 32A?
[myTouch 3G, Magic General] piwipo:
I get the verification failure when installing this ROM (No signature :( ). I read it has something to do with the wrong SPL update file. Which one should i use for a 32B device in order to mount this rom?

Thanks!
[myTouch 3G, Magic General] gluebunny:
So question then.

Before starting this process (OP) does one need:

A proper 'spl'?

A proper 'radio'?

A rooted Magic?

It seems so...but there are so many docs all over but I still can't find one "stock Magic->Hero firmware".

I will shortly be getting a Rogers HTC Magic, so probably 32A and .009 SPL. I would like to go to the latest Hero 1.5 firmware that is considered 'fast'.

I just don't want to brick it so I am being paranoid. I hear the radio/SPL is the most common way to do so so I am trying to get all the steps I need to go through understood and written down in one place :)

Cheers
[myTouch 3G, Magic General] xyzulu:
Read the Sapphire Wiki, you'll find that most likely, you will not need to flash any of these.

Spend a few days reading and watching this forum, and your questions will probably be answered.
[myTouch 3G, Magic General] xyzulu:
What rom? This thread is not about a rom.
[myTouch 3G, Magic General] gluebunny:
That was my impression as well from most of the tips, but then some threads talk about how you have to go to .005 SPL before doing anything. I've spent the last 3 days reading and reading.

eg: "No known Sapphire handset needs an updated SPL yet unless you want to flash a new boot image, splash screen or recovery rom to your handset - with the exception of the "Perfect SPL" Revisions listed below. Updating your SPL can be risky, so this has been listed in the Advanced section below. You do not need to update your SPL in order to install a complete ROM package"

However...everywhere I read says I should put a new recovery ROM on so that I can back up with nandroid.

The two most succinct seem to be:

http://www.karrderized.com/romguide/

http://wiki.xda-developers.com/index.php?pagename=HTC_Sapphire_Hacking

Or perhaps the 'fastbooting not actually flashing' is the key that I am missing? If so, then what would be the point of actually flashing a ROM on as opposed to fastbooting?

Just don't want to brick it...and so much conflicting information out there.
[myTouch 3G, Magic General] flamingblue8z:
SAPHIRE PVT 32B SHIP S-ON G

HBOOT-1.33.0006 (SAPP30000

CPLD-10

RADIO-2.22.19.26I

Is it possible to get this HBOOT? Yes I know its the perfect spl but if I have to do a device exchange with T-Mobile it must be factory.
[myTouch 3G, Magic General] MasterOSX:
Anyone have the original Tim spl plz?

Many tnx
[myTouch 3G, Magic General] mgear356:
damn i have the same spl as you..

i didnt flash the radio and now my magic is a brick..

i flashed enig release..

Anyways where is the link for the radio?
[myTouch 3G, Magic General] maxisma:
Does one of these SPL's increase the /system partition more then the .2005 ?

I don't want to flash all these SPL for testing ;D
[myTouch 3G, Magic General] woo456:
I have a HBOOT-1.33.0004 (SAPP10000) : Sapphire PVT 32B SHIP S-ON G : CPLD-10 (Voldafone UK) device. I'm a little confused. Whick SPL should I pick?

I can use any one of them? Can I use the .2005? Should I update the radio or smth?
[myTouch 3G, Magic General] Wysie:
woo456: From what I know you can use any of them. I too would like to know why I should or should not choose 2010 over 2005, etc.
[myTouch 3G, Magic General] Drakonix:
Hello, I'm in the same confusion, I have a HBOOT-1.33.0004(SAPP10000) : Sapphire PVT 32B SHIP S-ON G : CPLD-10 (Sfr-vodafone France), and the latest radio (RADIO-2.22.19.26I).

I need to flash just a data.img from one of my backup to my phone, but fastboot indicates me there's a error in verification of the signatures...

It seems that error is due to the security ON of the spl, and the engineering spl doesn't have this security check, am I right?

So which SPL I have to pick? And what are the side effects ( I mean for the OTA updates, i read that engineering spl make the phone unable to support OTA anymore).
[myTouch 3G, Magic General] Cheesebaron:
The 2004 or 2005 should work fine. If you have the radio ending in 26 you are good to go.

Well if you want a Engineering SPL you also might want to try out the awesome and fast roms out there, so there is no reason to get OTA updates anyways.
[myTouch 3G, Magic General] Drakonix:
I want a engineering spl because after trying everything, this is the only way to get back my data from a backup, the security on prevents me from just flashing a single .img (data.img) , not a complete rom :).

I just have read the crios's spl supports OTA, is it right?

Does it is compatible with Pvt 32B?

Thanks for you're answer for what version we have to pick :).
[myTouch 3G, Magic General] sevenfire:
Please Help i missed a step and now it stuck on HTC Magic Logo

Please help, i am stuck on HTC Magic logo without being able to fastboot:

Press the GREEN key once the update is done

Press HOME + BACK to reboot

I missed the Press the GREEN key once the update is done. I press reboot using the trackball. any ways i can get into the Fastboot? I tried all the combinations still didnt work. (mine originally 1.33.0009H, flash it with engineering SPL 2005). Thank you in Advanced.
[myTouch 3G, Magic General] gdskp:
What's new in 1.33.2010? Should we flash this instead of 1.33.2005?
[myTouch 3G, Magic General] Cheesebaron:
It is for the phones that had the perfect SPL
[myTouch 3G, Magic General] DopyG:
Is it bad to have 1.33.0010?

I just updated my danish Magic with a 05-08-2009 update and the SPL changed...
[myTouch 3G, Magic General] nold-i-spolen:
There seems to be a lot of us n00bs that arn't sure wich SPL to chose.

I have

SAPPHIRE PVT 32A SHIP S-ON H

Hboot-1.33.0009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17

So which Engineering SPL will worke on my phone? Any?

Som one also mentioned somthing about updating the RADIO

How will i know/check which one is compatible with my phone/RADIO/ect.......i have searched in her, and googled it, but can't seem to find the answer, can somebody point me in the right direction

Thank's

Thomas

PS The Rapidshare links seems to be dead.........
[myTouch 3G, Magic General] robocik:
nordic

I changed from HBOOT-1.3300.0009 (SAPP10000) on my nordic to Engineering SPL 1.33.2010, it works good :)

thanks!
[myTouch 3G, Magic General] nold-i-spolen:
robocik do you mean "from HBOOT-1.33.0009"?

"it works good" with wich ROM ect.?

And what others spec's do your phone have? an updated RADIO?

Thanks!
[myTouch 3G, Magic General] dcplaya:
Should I replace my "PerfectSPL" with a non-perfect? I already used the 1-touch rooting program and installed Cyanogen's Mod (Love by the way, Thanks Cyanogen!) But is a non-perfect/hacked SPL required and/or a good idea?
[myTouch 3G, Magic General] chromeragnarok:
same thing had happened to me. Originally, mine was 1.33.0009G, flashed it with SPL2004. Is my phone bricked? Or is there any way to salvage my unit?
[myTouch 3G, Magic General] TikiiTorch:
1.33.2010 on MyTouch

Is there anything wrong with running the Engineering SPL 1.33.2010 on a MT3G?

I searched quite a bit and couldn't find this answer.

If said answer already exists, I would not be offended by a stern face slap and a link.

TIA!
[myTouch 3G, Magic General] hikki2000:
OP, where can i download the original SPL?

OP, where can i download the original SPL? Just want to flash it back if something goes wrong!
[myTouch 3G, Magic General] hydronos:
on my second mytouch I did the one touch root and had the .2004 spl and now I updated to Engineering SPL 1.33.2005, I get successful update and then it asks for a reboot and when I reboot it goes back into the recovery screen and on the bottom it says formatting cache but I waited for 30 min and it still says that...is that normal? Can I go ahead and flash a new rom?
[myTouch 3G, Magic General] robocik:
Hi,

I had a stock Magic from 3 with stock .0009 and i've followed this thread and changed to 2010 eng.

The change was flawless and now my phone works like before, but i can flash my recovery etc. without problem.

i have not changed radio, just spl, and rom of course :)...

all roms i have tryed(cyanogen, MyHero, Hyakuro, Drizzy etc.), works good.
[myTouch 3G, Magic General] ptekelly:
any news on the original SPL for 32B (uk voda)?
[myTouch 3G, Magic General] hydronos:
Can i go from Engineering SPL 1.33.2005 back to 1.33.2004 or will this brick the phone -- tmobile mytouch 32b...wanting to do this because no rom will flash to the phone tried different sd cards phone just sits at mytouch screen
[myTouch 3G, Magic General] lesjaw:
i miss the press Green key too..but it seems everything is ok..i can enter fastboot and flash latest AmonRa recovery...

i'm using 2010 engineering SPL now..
[myTouch 3G, Magic General] lesjaw:
^ i just flash 2010 from 1009...i have the same magic with you...
[myTouch 3G, Magic General] yellow_panther:
Some informations more.

Hello,

Have you updated your SPL? With wich Engineering SPL?

Did you do something special to update?

I have a # HBOOT-1.33.0009 (SAPP10000) : Sapphire PVT 32A SHIP S-ON H : CPLD-12 (Sunrise SWISS)

RADIO-3.22.20.17

thank you.
[myTouch 3G, Magic General] excepti0n:
I bricked my Magic doing this. I had to get another one.

This is the setup:

- Vodafone 32B with SPL 1.33.2004

- Flashed to Engineering SPL 1.33.2010

All care was exercised, but it killed the phone.

I have a feeling that if the original SPL is 1.33.2004, one should flash with the Enginnering SPL of the same number, is this correct? I flashed 1.33.2010 because I thought it was the 'latest version'. Instead, it killed the phone.

Perhaps this useful information to anyone. I for one am not going to try to put another SPL on at any point until there are more guarantees / safety options to prevent the bricking. Too many people with bricked phones after an SPL flash. There must be something that isn't know or communicated that's causing this.
[myTouch 3G, Magic General] woo456:
Well I had 0004 SPL and flashed it to 2005 SPL with no problems. Not sure about 2010 though.
[myTouch 3G, Magic General] edubarr:
I've got a Rogers HTC Magic

HBOOT-1.33.0009 (SAPP50000), CPLD 12

PVT 32A, RADIO-3.22.20.17

Just flashed it with the 2005 without any issues.
[myTouch 3G, Magic General] eugene373:
Just posting results for my T-Mobile MT3G.

Original

__________________

MT3G PVT32B

SPL 1.33.0006 (SAPP30000)

RADIO-2.22.19.261

May, 27 xxxxx

__________________

First I started off by doing the 1 click root from http://theunlockr.com/2009/08/22/how-to-root-the-mytouch-3g-or-g1-in-one-click/

Once Rooted & with Custom Recovery, I grabbed Engineering SPL 1.33.2009 & booted in to recovery, flashed the .zip and Then flashed my new Rom.

Custom MT3G Now Reads.

_________________

MT3G PVT32B

SPL 1.33.2009 (SAPP30000)

RADIO-2.22.19.261

May, 6 xxxxx

Just want to Thank EVERYONE that made this Possible for me & everyone else to do.

Sincerely,

Eugene373
[myTouch 3G, Magic General] jecuendet:
I have exactly the same phone, coming from Orange (French part of switzerland)

What was working exactly for you?

Which SPL?

Thanks.
[myTouch 3G, Magic General] real_juvenile:
Perfect Spl?

Have I a perfect SPL?

Sapphire UNKNOW 32B SHIP S-ON G

CPLD-10

RADIO-2.22.19.26I

Jul 31 2009

H-Boot-1.33.0007 (SAPP10000)

Firmware: 1.5

Baseband: 62.50S.20.17U_2.22.19.26I

Kernel: 2.6.27-00394-gc6c6056 android-build@apa27#1

Build Number: CRC24

i cant find the right spl to flash my htc magic to hero rom.

how to root?
[myTouch 3G, Magic General] Beast84:
So if my phone reads this:

SAPHIRE PVT 32B SHIP S-ON G

HBOOT-1.33.0006 (SAPP30000)

CPLD-10

RADIO-2.22.19.26I

This HBOOT 1.33.2010 should work?

Edit: Do I have to follow this procedure first to fix the perfected SPL? I'm assuming I do but just checking before I do something stupid
[myTouch 3G, Magic General] Beast84:
Anyone?? Got anything for me?
[myTouch 3G, Magic General] jbirdLt:
I just have a quick question, when using the recovery image, the thread says "Make sure your phone is rooted and that you are using an engineerings SPL!", but the recovery image is required in order to install the engeinnerings SPL. So can someone help me clarify this please. Thanks
[myTouch 3G, Magic General] edubarr:
If I recall correctly, that warning is for the RA 1.2.1 32A ROM, not the recovery image (link: http://xdaforums.com/showthread.php?t=538645). There are no such requirements to update the SPL, but be careful since it may brick your phone.

You need an engineering SPL to flash files signed with a test key (restore your nandroid backups for example). In order to install the engineering SPL you do need to boot into a recovery image, and apply the update.zip from there (or choose the zip file in Amon_RA's 1.2.1 recovery).
[myTouch 3G, Magic General] thihaz:
anyone has flashed Engineering SPL 1.33.2010 on HTC Magic 32A?

Just want to know this whether anyone has tried

Engineering SPL 1.33.2010 on HTC Magic 32A?

Because in the forum, some people bricked their phone easily. (e.g excepti0n)

Although it is said that

The following SPLs "should" work on PVT 32A and PVT 32B boards :

It would be great if somebody can write out clearly which SPL is for which handset.

Or we can follow how ROMs are labelled, this ROM is for 32B, that ROM is for 32A.

Another question is

MUST I flash the engineerings SPL first before flashing recovery image,RAv1.2.1H?

Best,

Thihaz
[myTouch 3G, Magic General] mgorman:
are you still wondering what CPLD stands for?

http://tinyurl.com/n23sgf
[myTouch 3G, Magic General] midtoad:
New Rogers ROM

I have the new Rogers update from HTC and now my SPL data is:

SAPPHIRE PVT 32A SHIP S-ON H

HBOOT-1.33.0010 (SAPP50000)

CPLD-12

RADIO-3.22.20.17

June 2 2009, 17:28:28

I don't see this version yet on the first page of this thread.
[myTouch 3G, Magic General] crypticc:
I have this one too, for HTC Magic Vodafone UK (replaced a faulty phone with 0004).

Sapphire PVT 32B SHIP S-ON G

H-Boot-1.33.0007 (SAPP10000)

CPLD-10

RADIO-2.22.19.26I

Jul 31 2009

Anything I can do to grab the rom and make available to others as is missing from 1st page?
[myTouch 3G, Magic General] Sheep2045:
I just received my HTC Magic from Vodafone Germany today and was unable to root it. I seem to have the same spl version as some of the above posters:

Sapphire Unknown 32B SHIP S-ON G

H-Boot-1.33.007 (SAPP10000)

CPLD-10

Radio-2.22.19.26I

Jul. 31 2009,15:49:25

I tried the goldcard method, first time I got "incorrect cid" after flashing, so I switched to another card, following that I got "wrong image" after flashing. I assume there is no root availabe yet for that version?

edit: loading cyanogen via the one click root method worked just fine.

Thanks,

Sheep2045
[myTouch 3G, Magic General] str4vag:
HTC Magic (Malaysia)

Sapphire PVT 32A SHIP S-ON H

HBOOT-1.33.0009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17
[myTouch 3G, Magic General] Visti:
I'm pretty sure I had this info before flash:

SAPPHIRE PVT 32A SHIP S-ON H

HBOOT-1.3300.0009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17

This is from a Danish H-branded Magic

I can confirm that the 2010 appeared to brick my phone, but I was able to get it up again by running fastboot boot myrecovery.img prior to booting the phone and then repeatedly trying different combinations of BACK+POWER and VolDown+HOME+POWER and such, finally it just made contact and booted RA's recovery.

To clarify, I couldn't get into either recovery or bootloader prior to this. From RA's recovery I flashed the 2009 SPL and it worked from then on out. Info now:

SAPPHIRE PVT 32A ENG S-OFF H

HBOOT-1.33.2009 (SAPP10000)

CPLD-12

RADIO-3.22.20.17
[myTouch 3G, Magic General] IFlip92:
can anyone please provide with an original 1.33.007 SPL for the magic on 32B ? :(
[myTouch 3G, Magic General] b1gwest:
Flashed my Vodafone UK magic from 1.33.0004 to Engineering SPL 1.33.2005

Can now use cyanogenmod rom. Yay!
[myTouch 3G, Magic General] Amon_RA:
When you get these errors it means that your goldcard isn't created properly.

The one click method does NOT fix the SPL so you will still have a perfected SPL that is unable to fastboot!
[myTouch 3G, Magic General] timbouk:
On the (official) Vodafone UK forums we have come across an SPL version not listed in you main list "HBOOT-1.33.000

7

(SAPP10000)".

This is from a UK Vodafone handset.

We are trying to find out if this could be related the poor signals etc as the user of this spl says he has no issues with network dropouts. Has anyone come across this version?
[myTouch 3G, Magic General] crypticc:
Hi again. Post 147. Happy to extract if is risk-free and someone can tell me how. (Still no dropped signals).

Update: Wife returned her phone under warranty for the continuously dropping signal. Today she received supposedly reconditioned replacement handset back, with 0007 hboot. This would seem to confirm this is the new default UK rom.

Folks in U.S. on 0005 have confirmed they get the dropped signal issue, so I would also presume that between 0004 / 5 and 0007 a fix has been made.
[myTouch 3G, Magic General] JLelie:
Original SPLs

... Any change that they can be downloaded somewhere, just in case we want/need to fall back to the original stuff?

TTFN

JL
[myTouch 3G, Magic General] djdavis75:
Which SPL?

I have the following phone:

HBOOT-1.33.0008 (SAPP10000) : Sapphire PVT 32A SHIP S-ON H : CPLD-12 (TIM (Italian))

It's unlocked and I'm using it in the US.

I want to be able to debrand my phone by replacing the boot splash screen. I would also like to still be able to run my factory OS in addition to loading new ROMs to try out.

I really can not afford to brick my phone, but I'm unsure which SPL to download. I do have a Nanddroid backup of the phone.

Thanks,

David
[myTouch 3G, Magic General] crypticc:
So, since changing phones wife hasnt dropped a signal since. Given this is same experience as me it would appear 0007 is the fix for signal always dropping.
[myTouch 3G, Magic General] patoh:
I have a Vodafone AU Magic 32B and I get the No Signature, verification failed error when I try to update to update.Engineering-SPL-HBOOT-1.33.2005-signed.zip. I used the One Click root method of flashing with the RAv1.2.1G.img as a recovery image.
[myTouch 3G, Magic General] skhell:
I am also looking for it. Can we use other SPL to replace this one?
[myTouch 3G, Magic General] yellow_panther:
Success

Hello,

I have a :

HBOOT-1.33.0009 (SAPP10000) : Sapphire PVT 32A SHIP S-ON H : CPLD-12 (Sunrise SWISS)

RADIO-3.22.20.17

And I successfully upgaded to :

Engineering SPL 1.33.2005 - MD5 : 2B1AAA9012DC28F88C482E1B21A46FDD

Thank you for your good work! :)

Yanick
[myTouch 3G, Magic General] garimarii:
HBOOT-1.33.0007 (SAPP10000) : PVT 32B SHIP S-ON G : CPLD-10 (vodafone germany)

this is my "new" magic,i get another one because my firtst bought April had a problem...

i cannot flash...i think its also a "perfected" SPL
[myTouch 3G, Magic General] skhell:
I have one like yours, but its Vodafone Spain. Try the one method click, it worked ok with me:

http://theunlockr.com/2009/08/29/how-to-root-the-htc-magic-in-one-click/

Any way, it would be great to change that SPL, since I cant change the splash screen, any change of doing that on this phone?
[myTouch 3G, Magic General] Amon_RA:
Once you have a custom recovery you can just flash the SPL's mentioned in the first post :

Copy the zipped spl you want to the root of your sdcard

boot into recovery mode (hold home while booting)

select update:zip and choose the zipped spl

apply
[myTouch 3G, Magic General] skhell:
Hi!

That seems a great solution. I have the recovery-RAv1.2.1G.img recovery image installed, so I guess I can do that.

Which SPL should I install on my 32B?

Is this a safe precedure, or can I brick my phone? I have seen quite a few phones bricked by updating their spl...

After I update the new spl, will I have to install my custom ROM?
[myTouch 3G, Magic General] maxisma:
1.33.2005 is recommended..
[myTouch 3G, Magic General] jsoneng:
any1 with alternative download links? for the recovery as well as latest engineered SPL? i cant seems to dl using rapidshare. =( HELP!!

Thanks in advance
[myTouch 3G, Magic General] skhell:
Any chance of brick the phone using this SPL on my phone?
[myTouch 3G, Magic General] Super Jamie:
There seems to be alot of confusion as to which SPL version to flash and a few bricked phones because of it. Could someone please answer any/all of these questions:

I assume the 00xx Original SPL versions in the original post correspond with the 20xx Engineering SPL versions, is this correct?

If your phone has an older SPL version (eg: 0004), is it possible and are you better to update to a later SPL version (eg: 0005, 0009 or 0010)?

Does anyone know what the CPLD number is relevant to? Yes I have read Wikipedia and am aware that CPLD is an acronym which means programmable hardware chip, what makes CPLD-10 different from CPLD-11 different from CPLD-12?

Are you better to stick to images that correspond to your CPLD version? (eg: xx04/xx05 for CPLD-10, xx08/xx09/xx10 for CPLD-11/12)

There has been talk of being able to backup your original shipment SPL before flashing an engineering SPL, what is the tool to do this? Where is it available?

Does flashing an Engineering SPL stop you from booting the original provider ROM?

Does flashing an Engineering SPL stop you from receiving OTA updates from your provider when using an original provider ROM?

Thankyou.