yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T General] pjc21:
Ok I had a search through several post on the "cannot unlock" issue after rma and found what I think is the issue if you registered your tab before an rma.

When you first register your tablet online with asus - information about your tab is sent to asus including your tab's MAC address for unlock & ota verification.

It seems that some (not all) tab's that come back after getting rma'd now have a different MAC address and so now when you run the unlock tool the tab's MAC address & the one registered with asus no longer match and cannot be veriferied so the unlock tool cannot proceed, same goes for ota's here.

If this is the case I have only found one solution which is to send it back to asus and tell them the problem is with ota & unlock.

(I assume here they reset your mac address to match what they have or vice versa)

The link aerdely posted also looks like a good way to go. It's from member "Asus_USA" from the US office who is trying to help those with this issue of not being able to unlock after rma by gathering a list of users /device info to send to HQ.

http://xdaforums.com/showpost.php?p=40408537&postcount=567

Hopefully asus will be kind here and I think having your device info (serial & current mac address) they should be able to reset the mac address on there end to match your current one so you will not have to send in your device - not sure here

Hope this helps
[Transformer TF300T General] Kaptinkrunk:
It will thanks I've read a lot of those posts but nothing helped at the time I'm working right now I'll look into it later

Sent from my Galaxy Nexus using Xparent Cyan Tapatalk 2
[Transformer TF300T General] c0ded:
Do you flash the version of twrp designed for the one you're downgrading from or the one you're downgrading to?
[Transformer TF300T General] pjc21:
I flash a version of twrp that I know works for the firmware I am upgrading/downgrading to.

So say I'm on JB 10.6.1.8 with twrp 2.4.4.0-4.2 and I downgrade to 10.4.2.20 - I will flash twrp 2.4.4.0 (not the 4.2 version)

- If I upgrade from 10.4.2.20 to 10.6.1.8 I will flash twrp 2.4.4.0-4.2

- If I upgrade from 10.6.1.8 to 10.6.1.15.3 I will flash twrp 2.5.0.0-4.2

I think (but have not tried) that the new twrp 2.5.0.0 (not the 4.2 version) will also be fine on any JB firmware below 4.2.1 (10.6.1.8)

JB 4.1 firmwares

10.4.2.20 - twrp 2.4.4.0 or 2.5.0.0

10.4.2.18 - twrp 2.4.4.0 or 2.5.0.0

10.4.2.17 - twrp 2.4.4.0 or 2.5.0.0

10.4.2.13 - twrp 2.4.4.0 or 2.5.0.0

10.4.2.9 - twrp 2.4.4.0 or 2.5.0.0

JB 4.2 Firmwares

10.6.1.8 - twrp 2.4.4.0-4.2

10.6.1.15.3 - twrp 2.5.0.0-4.2

Edit: updated info on first post
[Transformer TF300T General] f69m:
Sorry, but if you did that, you have been lucky so far.

Always use the TWRP version for the bootloader you have currently installed.

In other words, use the one for the firmware you are upgrading/downgrading FROM!

Once you flashed the new firmware, first thing is to flash a TWRP version matching the new version.
[Transformer TF300T General] pjc21:
Sorry I think you have misunderstood what I am saying :confused:

If you read my op/first post you will see a list of what twrp version you need to flash for each JB firmware that you are have upgraded/downgraded to. Flashing the incorrect twrp for the firmware can cause a bricked device.

So if you are currently running say 10.4.2.20 with twrp 2.4.4.0 and you fastboot flash the system blob from 10.6.1.15.3 you will then need to flash twrp 2.5.0.0-4.2
[Transformer TF300T General] f69m:
Probably we mean the same thing and the confusion is just about details. :)

Sorry, I guess I have read too many threads describing too many ways.

I am sure we can agree on this part:
[Transformer TF300T General] agt7575:
Well, I called Asus customer service/tech support and told them about the problems I was having with the bootloader unlock app. Their response was as follows:

"Unlocking the bootloader can cause serious damage to your tablet, and is not something that Asus recommends. Therefore, we can not comment or support anything dealing with unlocking the bootloader as Asus does not want to become liable for for any damage done to anyone's tablet".

So basically, Asus has no problems supplying its customers with the unlock app, but every problem with supporting it... makes no seance to me.. ., "The first rule of fight club is you don't talk about fight club" lol
[Transformer TF300T General] MaMMiTs:
So just to be sure, after I flash the system blob and reboot again to fastboot, I should flash the TWRP for the current running bootloader, right?

My TF300t is on 10.6.1.15.3. I want to downgrade TO 10.4.2.20. After the fastboot flash system blob of 10.4.2.20 I would fastboot flash TWRP 2.5.0.0-4.2 for 10.6.1.15.3...Or should it be TWRP 2.4.4.0 or 2.5.0.0 for 10.4.2.20?
[Transformer TF300T General] pjc21:
After you flash 10.4.2.20 system blob (a JB 4.1 bootloader) you want to flash twrp 2.4.4.0 or 2.5.0.0, the twrp -4.2 versions are for the JB 4.2 bootloaders (10.6.1.8 & 10.6.1.15.3)

side note:

Flashing twrp 2.5.0.0-4.2 on 10.6.1.8 bootloader will result in a split-screen issue in twrp, so twrp 2.5.0.0-4.2 is for 10.6.1.15.3 and twrp 2.4.4.0-4.2 is for 10.6.1.8 - not sure yet if twrp 2.4.4.0-4.2 works correctly on 10.6.1.15.3
[Transformer TF300T General] MaMMiTs:
Right, I understand the necessity to flash the appropriate TWRP AFTER a successful downgrade (2.4.4.0 or 2.5.0.0 if on 10.4.2.20), but DURING the PROCESS of downgrading, right after the "fastboot -i 0x0b05 flash system blob", which TWRP should I use in he following step for the "fastboot -i 0x0b05 flash recovery twrp-2.4.4.0.blob" command given in the OP example? For me would the TWRP still be for 10.4.2.20? Or the TWRP for the current firmware still installed (10.6.15.3)?

I actually successfully downgraded a TF300t two months ago from 10.6.1.18 to 10.4.2.20, so I understand how important it is not to mess up flashing TWRP....I just forgot what I did (hence my questioning) but I thought I used the TWRP for the firmware still installed (10.6.1.18 at the time) but I could be wrong :P.

...Also, I had to use the Unlock Device App v8 on this tablet and noted that someone had trouble unlocking it again with the v8 app after downgrading. Should this be of concern? Or did that user have a unique experience? Will my tablet still be unlocked after the downgrade procedure is complete?
[Transformer TF300T General] pjc21:
After fastboot flashing the system blob extracted from the 10.4.2.20 firmware you want to fastboot flash twrp 2.4.4.0 or the newer 2.5.0.0 (not the -4.2 versions) - To check your bootloader has downgraded from 4.2 to 4.1 after flashing the system blob 10.4.2.20, when you reboot to bootloader the text in the top left of the screen will show bootloader version & also you will now have 4 icons again instead of 3

Upgrading/downgrading will not re-lock your device bootloader, I've been up and down through all the JB firmwares and has always remained unlocked
[Transformer TF300T General] jamm513:
So, i have my TF300T whit Unlocked, bootloader, JB 4.2 Bootloader and TWRP 2.5.0.0-4.2 + root, after flash system.blob y need to flash TWRP? in other words: I have TWRP installed, and now flash system blob, i need to do this step: "Next

In the below command I am using TWRP 2.4.4.0 for JB firmware 10.4.2.20, so just change command according to TWRP version needed" ?

and i after do this : "Install" & select the firmware zip you copied to your external sd card and slide to flash/install." y need to flash twrp again?

thx in advance, i dont want to brick my tablet.
[Transformer TF300T General] funnel71:
If you flash a ROM to system, you need to flash twrp afterward because it gets wiped with the system flash.
[Transformer TF300T General] kream21:
Worked for me! Thanks!

I hit the thanks button, but I will say it again. Thanks big time! The only thing is that I had to manually boot my tablet as my windows 7 can have a mind of it's own. In the end it all worked as you stated. I am now able to flash a variety of ROMS to see which one I like the best.
[Transformer TF300T General] :
I'm on JB 4.2 bootloader 10.6.1.15.3 (CROMi-X) with TWRP 2.5.0.0 (4.2 version). I want to downgrade to the original rom I had before: CleanROM Inheritance 3.4.6 | JB 4.1.1 10.4.4.25. You mentioned above that you had to copy xx_epad-user-10.4.2.20.zip to your external SD. Is it necesary to have a MicroSD for this downgrade to work, or can I just copy the zip to the memory of the tablet?
[Transformer TF300T General] pjc21:
No you can copy it to the internal SD and flash from there. I just put it on external as I also wipe internal storage, but you could copy it after the internal wipe (with adb push if needed) or even try without wiping the internal SD.
[Transformer TF300T General] :
I'm about to try this. Thanks a lot!
[Transformer TF300T General] Prof Peach:
Perfect guide. Having installed 4.2 i now want to run paranoidandroid like i do on my nexus 7.

Im new to the tf300 so appreciate a guide that helps me avoid any big paperweight mistakes.

I initially installed a 4.1 recovery on 4.2 but got away with it :)

Sent from my ASUS Transformer Pad TF300T
[Transformer TF300T General] pcoussa:
[MENTION=4526258]pjc21[/MENTION] You mentioned in the OP to put the files in your android-sdk/platform-tools folder.

I have attached the folder hierarchy where my fastboot etc resides. Is it ok to place these files here?

CHeers
[Transformer TF300T General] pjc21:
Yes that's where you want to put the files :good:

I only say android-sdk/platform-tools as this seems to be the default location after installing the android-sdk but they should go where-ever fastboot and adb are located.
[Transformer TF300T General] pcoussa:
I was reading over on surdu_petru thread that he said that you can download the 10.4.?.20 and just flash it. Because it contains the bootloader as well you don't really have to go through the whole fastboot process.

Is this a fact?

Cheers
[Transformer TF300T General] pjc21:
Yes there are 3 methods here, update via stock recovery, update via fastboot or update via twrp recovery.

All 3 should do the same, I just pefer fastboot method and I'm not sure how a downgrade via recovery would go - it should work but have not tried.
[Transformer TF300T General] noahvt:
Thanks for this guide!!,

i've downgraded to 4.1.1 to flash cm10.1 and it worked like a charm, i've found out i didn't like cm10.1 so i upgraded back to 4.2.1 using this guide as well then flashed cromi-x: had NO problems at all :)

again thanks,

noahvt
[Transformer TF300T General] lalo_a13:
My sucefull experience

Well, just today I managed to downgrade from 4.2.1 to 4.1.1 with it´s respectives bootloader (sorry, don´t remember their numbers right now).

The first thing I would recomend to any newbie (like me of course) it´s to install fastbook

I copyed the CM 10.1 zip and the gapps zip to my external SD.

Once done that, I downloaded the official Asus firmware and extract the blob file.

Then I enter to fastboot mode (Power and Volume -).

I opened a terminal in the same folder that my blob file was (the easy way is to navigate to the folder where is your blob file, press shift+right click in any BLANK space and select "Open terminal here").

After that I typed:

fastboot -i 0x0b05 flash system blob

Wait for the blue bar to finish and the "Sucessfull" screen to apear on your pc.

The I typed

fastboot reboot

Or you can reboot your pad manually.

The came the worry. My tab got stucked on Asus logo for 15 minutes. I was fearing that was bricked, but I decided to enter into fastboot mode once again.

Thanks god I did that, because I realized that now I have the 4 icons (meaning that I was on 4.1.1). And I saw the bootloader number 10.4.2.20

Then I flashed the TWRP corresponding to my new bootloader.

To do this, I navigate to the folder where my twrp blob file was, press shift+right click and select "Open terminal here" and then typed:

fastboot -i 0x0b05 flash recovery twrp-JB.blob

Here I want to say that you coul rename your twrp blob file to any name that likes you. Just remember to chage the instruction on the comand promt for the name of youf file.

Once the twrp was installed, I typed (Again, you can do it manually):

fastboot reboot

Finally, I entered again to fast boot mode and I selected the RCK option (sorry if I wrote wrong, but it´s the option with tree letter starting with R).

Then, I did a clean up: erase cache, dalvikcache and data.

Then I selected install, I found my zips for CM 10.1 and gapps, flash them and after that I did a clean of cache and dalvik cache one more time.

One more thing...(nop, it´s not a new iPhone ;D)

Now I´m using CM 10.1 Nightlies and life could´nt be better :D:cowboy::highfive:

P.D.1- Thanks to all the devs and the people from XDA that are always available to help newbies like me :highfive::fingers-crossed::good:

P.D.2. Sorry for the bad english :eek:
[Transformer TF300T General] University of Pi:
Also remounting a microsd with something like that on the root of it works (upgrading to 4.2 from 4.1.1)

(That's what I just did)

that's nice; now if only we could install a recovery and/or root without using a pc (one would enable the other)

adding fastboot on the go would make this the ultimate machine

but that's not very likely to happen anytime soon...
[Transformer TF300T General] NaderALDirany:
UnBrick ASUS TF300T

Hello OP,

Thanks for the useful info, but for my bad luck i wipped everything on my ASUS TF300T (FastBoot --> FLash ALL).

Now I dont have neither a ROM nor a Recovery on my ASUS, the Tablet starts and keeps showing the ASUS logo.

I have searched the WEB but with no SUccess, any advices Please...

Thank you,

Nader H.AL-Dirany
[Transformer TF300T General] pjc21:
Do you have access to bootloader/fastboot? vol- power
[Transformer TF300T General] NaderALDirany:
UnBrick ASUS TF300T

Hello [MENTION=4526258]pjc21[/MENTION] ,

I cant access the Recovery menu (Power + VOL Down), so no FastBoot commands,,,

I can access the APX mode (Power + VOL up)(Reset + Vol Up)

The Tablet starts and shows the ASUS logo only.

I tried the Wheelie commands, [using the bootloader.bin came in the package],

wheelie -r --blob blob.bin

nvflash --resume --download 5 ProperRecoveryForYourBootloader.img

nvflash --resume --go

I also tried the Easy Flasher,,, http://xdaforums.com/showthread.php?t=1688012 It shows that things are done successfully, but actually nothing happens and it keeps showing the ASUS logo only.

Maybe:

- I have to set some files like the "bootloader.bin" especially for my ASUS !

- The solutions available on the Web are related to TF200T !

I'm a computer engineer and a QC specialist, so my knowledge about such stuff is wide, but i still think i'm missing something.

Im opened/ready for any suggestion/question.

Thanks in advance.

Nader H.AL-Dirany
[Transformer TF300T General] cmendonc2:
I managed to upgrade without Formating internal storage or flashing the stock before any custom ROM.

But thanks! this helped a lot
[Transformer TF300T General] bigtoysrock:
Have not seen anyone get this error, but when writing TWRP it fails due to invalid state.

Was on the VERY newest bootloader locked, which is .5

Wrote 27.1 and reboot fastboot to write twrp and thats what I get.

[MENTION=4526258]pjc21[/MENTION] Just tried with an even old bootloader and same result, also now it wont boot past asus screen obviously lol.
[Transformer TF300T General] funnel71:
Invalid state normally means your bootloader is locked.
[Transformer TF300T General] bigtoysrock:
HA!! Just as I figured that out, neither unlock tools are working. Ideas??
[Transformer TF300T General] pjc21:
Try just fastboot flash a system blob then reboot and see if it boots ok, then try the unlock tool. Try with the below command as I think it may be a better method, will update op.

fastboot -i 0x0b05 flash staging blob

when complete

fastboot reboot

and hopefully it should boot up ok.

I would try with the blob from JB 4.1 firmware 10.4.2.20 and the v7 unlock tool as I've read of people having issues with v8 on 4.2 firmwares.

If the above works & once your unlocked you can update firmware and flash the twrp version you need.

Hope the helps.
[Transformer TF300T General] funnel71:
Register your device with Asus if you haven't already, and keep trying. It's the only known means of unlocking.
[Transformer TF300T General] bigtoysrock:
This got me booting again, thank you!!

After 7 times trying it and using tether it finally worked, thank you.
[Transformer TF300T General] IceC47:
Which recovery to flash when my bootloader is 10.6.1.27.1? thanks
[Transformer TF300T General] pjc21:
I still flash 2.5.0.0-4.2 on 10.6.1.15.3 - 10.6.1.27.1 - 10.6.1.27.5 "openrecovery-twrp-2.5.0.0-tf300t-4.2.blob"

I have not tried any of the 2.6 versions but read of some people having issues with 2.6.0.0-4.2 and not sure about 2.6.1.0-4.2 and 2.6.3.0-4.2 so I just stick with 2.5.0.0-4.2 for now.
[Transformer TF300T General] funnel71:
Confirmed. Use 2.5.0.0-4.2. Anything higher has mounting issues. This seems to be just right.
[Transformer TF300T General] bigtoysrock:
The patched TWRP 2.5.0.0-4.2 FTW! Safest bet.
[Transformer TF300T General] Heylliott:
Gooood

Thank you very much, it worked like a charm here, i can now use my tablet again. :good:

Just hit that thanks button ;)
[Transformer TF300T General] kahloucha042016@gmail.com:
hi ,

I have asus me301t,

i tried to change my bootloader, with this commande : fastboot -i 0x0B05 flash recovery twrp.blob

but i was not in the directory were it was the file (twrp.blob) ,

now I can't get my tablete working, it's not booting, it's gicing me the logo ASUS and stay there for ever

either when i press (vol - and power) , and my computer don't recognise it also , with adb (no devices)

is there a solution for this problem , thanks for your help
[Transformer TF300T General] professor7980:
Help with Recovery

So I recently purchased a TF300t and have been trying to put a custom rom on it but I cant access the recovery. Every time I get into the recovery it starts and then almost immediately it errors out. I can still get into android and I can root the tablet via a one click root. However though I think the os has stability issues due to its age and I want to do a complete restore and wipe it with a completely fresh install of the os. But I cant access anything beyond the basic recovery menu of RCU/Android/Wipe-Data. Any help would be greatly appreciated and the 1 click roots I have used are KingRoot and KingoRoot. Again any help is very welcome.
[Transformer TF300T General] ebonit:
Log out of your google account and try again!
[Transformer TF300T General] berndblb:
Well just flash the latest TWRP recovery in fastboot, then use the recovery to format /data and wipe cache and Dalvik. That will get you a squeaky clean system. Then flash the ROM of your choice.

Note that formatting data in TWRP takes an hour plus. Let it finish!

If you need help with fastboot, head over to the General section. First sticky has all the info you need
[Transformer TF300T General] Pourrito:
Rare bootloader Version

Deleted :

Guess it was the wrong place. Sorry about that :

=> moved to https://xdaforums.com/showthread.php?t=2259645&page=2041#post70387751
[Transformer TF300T General] pastorbob62:
This procedure works well with the TF700T as well. :good:
[Transformer TF300T General] figazin:
Hi, sorry to revive an old post.

I have a TF300T with 4.2.1 stock and no unlocked bootloader. I've downloaded v8 bootloader and it gives me "network connectivity issue" every time.

I'm currently trying to figure this out with Asus Support, but since I've seen this had something to do with the Device Tracker database and it seems Device Tracker doesn't exist anymore... then my guess is v8 won't work.

So I'm wondering if v7 would work even if it says on Asus Support that it's only for 4.0... I've seen a youtube video of a guy unlocking and installing twrp on a 4.2.1 with v7. Is this a bad idea? Otherwise, could I use the fastboot method to flash in a 4.0 ROM and try v7 and once unlocked, upgrade to 4.2.1 again?

Hope I get an answer. Thanks!
[Transformer TF300T General] ebonit:
Your problem is well known and widely discussed on several forums. To your understanding please Google it firstly if you want to unlock your devise. Here we go:

1. As far as I know V8 does not install at all anymore. V7 will install if you allow "less secure apps" in your Google account settings. On the web - not your Google account on the tablet!

2. Delete the Google account from the tablet (Settings > Accounts), then run the tool again,

3. If that doesn't do it, do a factory reset from Settings, reboot and during the initial setup establish a WiFi connection but skip the google account setup, then run the tool.

This can be a 5 Minute operation that goes without a hitch or a very frustrating experience with lots of error messages. There is no definite rhyme or reason for this. For some people it works like a charm, for others it works after 15, 25 or 55 attempts, for some never....

To check finally if you are unlocked, boot the tablet and read the tiny script in the left corner above. It should say: “The device is unlocked”.
[One (M7) Q&A, Help & Troubleshooting] Barca009:
Ok so I'm planning on designing a case for the new HTC One, I need to incorporate magnets into the back of the case (Just along the right hand side as you face the rear of the device) and I wanted to know if the constant presence of these magnets would effect the device in any way? The magnets only have 0.55Kg pull, what do you guys think?

If its all good I'll unveil my case after completion...

Thanks!
[One (M7) Q&A, Help & Troubleshooting] Barca009:
Anyone? :eek:
[One (M7) Q&A, Help & Troubleshooting] superchilpil:
It will interfere with the built in compass making it useless
[Galaxy Note GT-N7000 General] umbrella android:
i cant beleve it i almost cried :crying:

sourse
[Galaxy Note GT-N7000 General] Drummyman:
Amazing.

It's a pity that when official 4.2.2 OTA arrives to our Notes, cars will fly trough the sky and smartphones will be a thing of the past - we all will have them implanted in the eyes.

Seriously, they're good and interesting rumours but I honestly doubt I will keep my Note by the time it comes.
[Galaxy Note GT-N7000 General] mjrifath:
will have to wait long long time to get 4.2.2 on our note:crying:
[Galaxy Note GT-N7000 General] ThaiDai:
This is not only a rumour - it is a rumour by sammobile.

Its only purpose is to generate traffic on their website (guess why...).

What do you think how many people now will go back to this site and check about 4.2.2. news?

I like sammobile because of their service for new firmwares - it is excellent.

But their "insider"-attitude is ridiculous.

When I had the update from LSA leak to LSC they asked me to give infos about it. They are desperate for getting infos from everyone - and these people are called "insiders".
[Galaxy Note GT-N7000 General] Livebyte:
Not to be skeptical, I just don't believe a single word they are saying. They have released many false information before. It's a ploy to generate interests at their website plus their biasness to Samsung handsets is unbelievable. There's a prototype with a metal body for S4? HAH HA HA.
[Galaxy Note GT-N7000 General] umbrella android:
I guess time will be the true teller
[Galaxy Note GT-N7000 General] M3TALLICA:
3 year old Nexus S is running official JB.

No more samsung. My next phone would be a Nexus.
[Galaxy Note GT-N7000 General] tryunus:
The next megathread is comming

I can see the next mega thread is comming with over 1000 posts like before official Jelly Bean update.

Then we have a new thread to read every morning and evening every day.
[Galaxy Note GT-N7000 General] kof200440:
Well said Bro :)
[Galaxy Note GT-N7000 General] alxdadev:
AW: samsung is planning to upgrade our note to 4.2.2

I can only hit thanks one time :mad:

I would press it 5K times :D
[Galaxy Note GT-N7000 General] CSharpHeaven:
The only thing makes this 4.2.2 news worthy is when Samsung uses Linux 3.4 version with this release otherwise, this is just another glorified JB Android version.
[Galaxy Note GT-N7000 General] Atomix86:
Samsung made the Nexus S. Oops.