yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] Moriveon:
After purple, progress bar must be filled with yellow. Looks like you have MTK Preloader drivers, but don't have MTK USB VCOM Driver.
[Miscellaneous Android Development] Moriveon:
I'm so tired with these Iconias... Now I'm in readonly.

For b1-a71 users: all files are working (users have reported about success), if something will go wrong, look in the OP-post (FAQ) for "Unbrick".

For b1-a710 users: if all will be ok, your tablets may be unlocked soon. Rely on abstrkt1337.

For a1-810 users: can't work anymore, here's downgrade method:

We need an user with 4.2 (let's call him Y) and user with 4.4 (let's call him Z)

1. Y makes a factory reset, then Readback via SPFT (from 0x0 to end of USRDATA block, see scatter for details)

2. Y sends X an output file (about 2Gb).

3. X flashing it with SP Flash Tool via Write Memory (from 0x0 to "File Size (bytes"))

4. ???

5. PROFIT

Good bye guys.
[Miscellaneous Android Development] abstrkt1337:
Shoot me a pm with all the right instructions and the drivers, i will try that
[Miscellaneous Android Development] cabalio83:
Problem is I didn't find a way to make SP Flash tool work with A1-810. Probably wrong drivers or wrong version of the tool or both.

http://xdaforums.com/general/help/acer-iconia-a1-810-scatter-file-t2837481/post54867972 post 23 onwards

Advices are welcome, I would make a full dump of 4.4 before starting to mess around.
[Miscellaneous Android Development] DustArma:
Eh, time to unbrick
[Miscellaneous Android Development] m_beek:
I better wait for you to upload the files :( Hope you will do it soon, and THANK YOU for the support :D
[Miscellaneous Android Development] abstrkt1337:
For people who want to know the A71 Have the same hardware of the B1-710 except for the RAM, i'm waiting the PM of FireDiamond for tell you if it's work
[Miscellaneous Android Development] DustArma:
Huh, somehow my tablet didn't brick, it just ran out of battery.
[Miscellaneous Android Development] DustArma:
Yeah, even if I have the VCOM drivers installed it just won't progress past the purple bar, I'll try reinstalling them.

it hasn't bricked my tablet though, after I disconenct it I can just boot it normally and the recovery is still the stock one.

*EDIT*

I don't know what am I doing wrong, I keep reinstalling the drivers but the download keeps getting stuck after the purple bar.
[Miscellaneous Android Development] abstrkt1337:
Good news everyone, the bootloader Unlock Work on B1-710 i have CWM Working, it's working fine
[Miscellaneous Android Development] abstrkt1337:
B1-710 Unlocked Bootloader + CWM

FOR ALL B1-710 USERS

SOMETHING GREAT HAPPENED

Unlocked bootloader + CWM

​
[Miscellaneous Android Development] Moriveon:
Now I'm going to unlock B1-711 tablet!

If you have a rooted one, PM me ;)
[Miscellaneous Android Development] superdragonpt:
Unlocking the BL, is the same method i used on My Memo pad.

happy that it worked on yours...

Still, i dont understand why the members i PMed some weeks ago, said it didnt worked for them ... the only thing i can think off is an bad drivers instalation and the scatter file. (i said to replace my scatter file with yours ...)

Still this is an good day for you all.

Here's my little contribution:

Acer B1 710 (don't know if' it'll work on 711 ...)

CTR (Carliv Touch Recovery v2.5):

(There's two builds, flash both, and see what is the best one, i've made little modifications on both... )

Build1:

recovery.img - 5.27 MB

Build2:

recovery.img - 5.27 MB

(Just replace the recovery.img from the "A7x Unlock and CWM" dir )

Regards
[Miscellaneous Android Development] abstrkt1337:
It's worked without issues, maybe they didn't follow your instructions
[Miscellaneous Android Development] Moriveon:
So superdragonpt has unlocked our bootloader earlier than me O_o? Why you haven't written a post about it?
[Miscellaneous Android Development] abstrkt1337:
He never released the files, the member who tested said he's doesn't work, i only tested your files and it's working fine
[Miscellaneous Android Development] Moriveon:
Now I'm understaying, thanks.

Does CTR works on your tablet?
[Miscellaneous Android Development] abstrkt1337:
I'm Staying on CWM, i will test them later, now we have to wait if the unlock work for other people ;)
[Miscellaneous Android Development] superdragonpt:
Yeah, they could had their BL unlocked earlier lol

Doesn't matter, thanks for your work ;)

I didn't release it on public... didn't want to have an wall of flamers here saying "oh no you bricked my Iconia" lol

That's why i asked to members that already had their tabs bricked, to test it, nothing to loose at this point...

Glad for you ;)

Just give feedback if you can, about the Latest CWM Carliv Touch i built, i made little modifications on mountpoints and init.

Need to know, whats the best one, to give better support on future builds

Regards
[Miscellaneous Android Development] abstrkt1337:
They can still boot or they have an hard brick ?
[Miscellaneous Android Development] superdragonpt:
The 3 members i sent the files, said their Tabs where already bricked.

They flahed my files (and i said to replace my scatter with yours...)

The feedback i got from 2 members, was they where getting bootloop on logo.

-->Thats an soft brick, not hard brick, it's fully recover

They probably used my scatter ...

The other member said, he never got the USB MTK drivers to show on device manager

--> Bad drivers instalation

Regards
[Miscellaneous Android Development] abstrkt1337:
If they got a soft brick, her situation didn't changed, i used the scatter of [MENTION=5889030]FireDiamond[/MENTION] i only gived him two img gived by MTKDroidTools when i generated CWM with the boot.img he gave me
[Miscellaneous Android Development] superdragonpt:
I really don't know...

Can you give me an picture of my CTR builds working?

Need to check if the RESolution are ok.

If you can, try to make an full backup, on both builds, so that i know, the mount points/blocks are ok

Regards
[Miscellaneous Android Development] drmad:
you are great boys, the files also work well on my resurrected b1-710 !!!!!!
[Miscellaneous Android Development] abstrkt1337:
Nice to know my friends :D

---------- Post added at 03:55 PM ---------- Previous post was at 03:53 PM ----------

I'm staying on CWM, i don't really like CTR, i can pm you a proof with CWM running
[Miscellaneous Android Development] Moriveon:
Ok, I will test it on my B1-A71 tomorrow and give feedback ;)
[Miscellaneous Android Development] abstrkt1337:
It's for B1-710 Bro ;)
[Miscellaneous Android Development] Moriveon:
That bootloader can (try to) launch any recovery :D
[Miscellaneous Android Development] abstrkt1337:
Really nice to know, i will try to port the CWM i have on my old MTK 6577 i can give you the img to try to take a look

---------- Post added at 04:07 PM ---------- Previous post was at 04:04 PM ----------

But now we can root our tab with a single zip, so it's easy and without risk.
[Miscellaneous Android Development] drmad:
CTR boot, but i dont make full backuo now
[Miscellaneous Android Development] DustArma:
Could someone write a guide for installing the MTK drivers?
[Miscellaneous Android Development] Moriveon:
Look at 4PDA in Unlocking post, Guide #1.

Also, have you tried to write recovery and boot via Wite Memory?

Here we go. I've tested it on B1-A71.

Touch screen works very bad in Build #1 (pressed button and screen starts flashing, and nothing happens in recovery), but works perfectly in Build #2.

Left button cannot be touched in Build #2.

As you can see, text left buttons needs to be aligned.

And I can't find the Back button!
[Miscellaneous Android Development] Moriveon:
What is the difference between B1-710 and B1-A710?

If there's no difference, so 710's unlocking files can be used for A710.

Somebody needs to test it ;)
[Miscellaneous Android Development] superdragonpt:
Yes thanks for the picture, i'll recompile another recovery ;)

So build2 works better?

For back and forward: Just SWIPE: to left or write ;)

Regards
[Miscellaneous Android Development] abstrkt1337:
Could you try to port a newer version of cwm

I can sent you the link in pm
[Miscellaneous Android Development] Moriveon:
Yes, it works much better, but it;s still having issues.
[Miscellaneous Android Development] abstrkt1337:
I didn't know we can use these recovery on A71
[Miscellaneous Android Development] superdragonpt:
Try this one:

I increase the resolution of CTR

recovery.img - 4.70 MB
[Miscellaneous Android Development] Moriveon:
I've PMed you earlier about

A71's bootloader = 710's bootloader.

Bootloader launches recovery, so

A71's recovery will work as 710's recovery.

:)
[Miscellaneous Android Development] abstrkt1337:
If the CWM i've sent you work properly so, we are ready to make flashable zip for the stock rom and rooting using zip :D
[Miscellaneous Android Development] bullbrand:
Will go download the dummies guide now :)

Get back to you soon as I find out anything ..
[Miscellaneous Android Development] bullbrand:
Well I deodex the apps and found 97 of the 156 files deodex without error the rest bomb out so not all seem able to deodex fully , as much as it seems a good idea , until the boot loader is unlocked and new ROMs are available if ever then why deodex at all ,

If I was to add anything I think I would list all the files preinstalled and after a successful root is done offer a option to simply remove any by simply selecting it maybe by number ie

Press number to remove bloatware

1 angry birds

2 plus one

Then delete the files and when all selected files have been deleted the user selects reboot and

Then you delete the files apk and odex then clear the dalvik and reboot . Not what you want to do but until

We are truly unlocked makes sense to me. PS I have been wrong in the past ..
[Miscellaneous Android Development] arif41:
I see some placeholder for Deodex and Reodex o.O
[Miscellaneous Android Development] ptexas:
HI Enton

With RootAppDelete I removed Acer Cloud, HD Games, Chrome, and various Themes and Google Apps.

I like to choose and install the apps I need myself as soon as I need them.

I also would like to remove Google Search and modify the taskbar on the home screen but I haven't found out how to do this so far.

Maybe somebody here can give me advice how to do this. At the moment I am running ADB Launcher Pro whch gives me the freedom to design my homescreen as I like.

A sleek basic custom ROM with AROMA Installer, 2-3 optional Launchers, and optional App installation would really be very cool but as I understood this is only possible if the bootloader is unlocked. And for this I fear our community is too small to come true :crying:.

But thanks a lot :good::good: for your time and effort on rooting the B1, this gives us the freedom to adapt our B1 to our needs.
[Miscellaneous Android Development] entonjackson:
The community around Acer Iconia B1 is everything but small.

But yes I think we all would like to see an unlocked bootloader and all the benefits of it.
[Miscellaneous Android Development] Tomaj33:
Did OTG i enabled after rooted, you know i have keyboard i now it dosent work?
[Miscellaneous Android Development] ++nemo--:
Hello. :)

I have a newly purchased Iconia B1-A71 with the RV04RC04 firmware. I used the toolkit [v0.5.5] to root with the matching system.img.gz. I followed the instructions and got the R.....O.....O.....T message, and it said it had successfully rooted and that I should unplug and boot my tablet. When I unplugged the USB cable I found that the tablet would not shut down nor respond at all, it was stuck displaying the prompt screen. I used the reset pin above the power button to force shutdown, after which the tablet would boot normally.

I thought it had been successfully rooted, so I downloaded a superuser app, but it couldn't install the binary. I tried another superuser app and it had the same problem. So I used joeykrim's Root Checker to check my tablet and it states the device is

not rooted

.

Would it be a bad idea to try rooting again with the newer v0.5.6?
[Miscellaneous Android Development] entonjackson:
No.
[Miscellaneous Android Development] ptexas:
As i wrote in a earlier posting I successfully rooted my B1 with Version RC04 and the partiton error message.

Now I am asking myself if it is possible to upgrade to RC05 or RC06 with Entons AiO tool and if this makes sense.

Of course I don't want to lose root and if there is no significant benefit in RC05 or RC06 I won't take any risks..

And are there release notes available of these versions?
[Miscellaneous Android Development] entonjackson:
you can only update if:

1. you get the ota offered

2. you install the update either over ota or zip without getting partition error.

you can not update by flashing a system.img.gz from a different firmware version than currently installed ony your device.
[Miscellaneous Android Development] Aung3:
hi

I'm a noob and it is first time posting.. :)

I bought an Acer Iconia B1-A71 and it's Image version is "Acer_AV051_B1-A71_RV02RC12_GC_GEN1"(seems to be lower version) and kernel Version is 3.4.0 and don't have System Update option in About tablet tab ...I've read the entire threat but I did not see anything for this Image Version .. so I not sure how to root !!!

Can Someone Help me with how to root or how to update to RV05 !!! thanks
[Miscellaneous Android Development] entonjackson:
This is the only firmware version, we don't have a system image of yet.

It would be great, if you could root from scratch under linux or mac osx, so we could provide the system image for others like you, having this version.

you could do it with a virtual machine or a live cd.
[Miscellaneous Android Development] marelc:
I run the root procedure after reading this thread. I had RV04RC04 firmware and i have used the appropriate image

All seemed to go fine but...

Device now displays acer logo on booting ( bootloop?)

I'd like to go to recovery and install image from sd card but I dont know which image to use. there is no Acer Firmware Update for that version

shall I put OS_Acer_Acer.AV051.B1-A71.RV05RC05_A41JA42J_A.zip instead ?

Where can I find appropriate firmware ?

Please help, thats my wife's tablet :crying:
[Miscellaneous Android Development] entonjackson:
Have you tried factory reset?
[Miscellaneous Android Development] marelc:
Hi entonjackson

Yes I did and also wiped cache partition

I did try to upload RV05RC05 but it gives me " invalid partition setting 17: fat 238e8000:888e8000
[Miscellaneous Android Development] Aung3:
Can u tell me how to root from Linux (ubuntu) ?? I really want to root this tablet cuz without root and gapps it is totally useless !!!! xD thz
[Miscellaneous Android Development] entonjackson:
Download the tool and read the readme. You can root from scratch, without any system image.
[Miscellaneous Android Development] marelc76:
Has anyone ever managed to recover a boot looping device with a partition problem ? :confused:

Or the only solution is to wait for Acer to release the firmware
[Miscellaneous Android Development] kubistar:
I run the root procedure after reading this thread. I had RV04RC04 firmware and i have used the appropriate image. Root run weel with no error message. Now device displays acer logo on booting, i tried the reset button but nothing, still showing only Acer logo?
[Miscellaneous Android Development] entonjackson:
Did reset button actually work?

try factory reset.
[Miscellaneous Android Development] superdragonpt:
Yes nice, they are very similar, should not be an problem

This one is an modified CWM (the one you send on PM), so this is an port:

recovery.img - 4.96 MB
[Miscellaneous Android Development] abstrkt1337:
It's CTR or CWM ?
[Miscellaneous Android Development] superdragonpt:
CWM, i said it on my reply ... ;)

Regards
[Miscellaneous Android Development] abstrkt1337:
Will test it when i'll have my laptop available.
[Miscellaneous Android Development] superdragonpt:
you dont need laptop...

download mobileuncletools from Play

go to Recovery update, place the recovery.img on root of sdcard

easy

;)

Regards
[Miscellaneous Android Development] Moriveon:
I want to add some info to [MENTION=5238428]superdragonpt[/MENTION]

You can use MonileUncle Tools only if you have unlocked your bootloader and installed CWM.
[Miscellaneous Android Development] superdragonpt:
Of course

But you already unlocked your BL, and have root ...

Even if someone else with an locked BL and without root, tried that, don't worry, nothing will happen.

the system is write protected at boot in that case...

regards
[Miscellaneous Android Development] abstrkt1337:
The recovery doesn't work it's shutdown, i had to reflash the recovery of FireDiamond
[Miscellaneous Android Development] superdragonpt:
Your refering to the last one i posted?

Thats the CWM you sent me, i just modified some init files (ported).

You should try the last Carliv Recovery i posted on post#3589

regards
[Miscellaneous Android Development] abstrkt1337:
[MENTION=5238428]superdragonpt[/MENTION] I'll stay with the CWM i have atm

Yes the CWM doesn't work
[Miscellaneous Android Development] DustArma:
What are the beggining and end addresses?

What's the MEGA password for the drivers.zip file?

Managed to unlock the bootloader and flash the custom boot and recovery images, I had to use the Write Memory tab as FireDiamond suggested, for start address I used the address that appears in the scatter file and for file length I used the container size
[Miscellaneous Android Development] Moriveon:
So, does your recovery work?
[Miscellaneous Android Development] Optimissimus99:
OK, i have asked out on the android-hilfe.de board for some JB /4.2.2 Users wich could send us their Scatter File, lets hope that some people send one :)
[Miscellaneous Android Development] Moriveon:
A1-810?
[Miscellaneous Android Development] DustArma:
Yup, first thing I did was flash SuperSU
[Miscellaneous Android Development] Moriveon:
Does flashing work well?
[Miscellaneous Android Development] DustArma:
I haven't tried more than SuperSU, but it seems to work well
[Miscellaneous Android Development] Moriveon:
I can't upload files for unlocking B1-711. I'm having some problems.

Sorry guys.
[Miscellaneous Android Development] fnldstntn:
Any chance to unlocking the bootloader of a1-810?
[Miscellaneous Android Development] DustArma:
I guess now we need to check if the kernel drivers Acer uploaded are enough to compile a working 4.1.2 kernel, the B1-A71 badly needs Swap/zRAM
[Miscellaneous Android Development] Moriveon:
A1-810 Unlocked bootloader formula:

Somebody with rooted 4.2 on A1-810 + Some files from my friend.

Now I haven't all stuff, but I will get it soon ;)

---------- Post added at 09:12 PM ---------- Previous post was at 09:09 PM ----------

4PDA is not alien-looking forum, if you are meaning it.

All guides were simplified by maximum and translated to English (not bad, but not brilliant too).
[Miscellaneous Android Development] Moriveon:
Does MEGA download driver link not working for you?
[Miscellaneous Android Development] Moriveon:
Refresh the page with guide, I've updated Decryption key, now it should work ;)
[Miscellaneous Android Development] Optimissimus99:
[MENTION=5889030]FireDiamond[/MENTION] Yes, A1 810 ;)
[Miscellaneous Android Development] tccc143:
A3-A10 KitKat

Anyone have links where I can download the A3-a10 KitKat update? Acer rep tells me it has not been released yet, but I swear it has. My tablet received an update I thought for 4.4.2, but it still reads 4.2.2.
[Miscellaneous Android Development] Moriveon:
First CWM update for unlocked B1-A71.

It just removes all preinstalled s**t from your tablet.

Download: MEGA

I will add auto-rooting in future.
[Miscellaneous Android Development] drmad:
I looked at the script and i think it is OK forl b1-710 also, you can confirm?
[Miscellaneous Android Development] Moriveon:
Can't confirm it because I'm not having B1-710. But I think some apps will be removed from B1-710 too.
[Miscellaneous Android Development] DustArma:
So I downloaded the kernel sources from Acer's site in an attempt to build a working kernel image, unfortunately it seems like it's missing files.

The kernel source is here: http://global-download.acer.com/GDF... B&Step3=B1-A71&OS=ALL&LC=en&BC=ACER&SC=AAP_6

If they're indeed incomplete then this is a GPL violation.
[Miscellaneous Android Development] Moriveon:
If somebody else can approve it, we can abuse on Acer.
[Miscellaneous Android Development] abstrkt1337:
They're not complete.

---------- Post added at 08:29 PM ---------- Previous post was at 08:28 PM ----------

Mediatek never give full source. It's was proved on some french forum
[Miscellaneous Android Development] Moriveon:
That means

"No custom kernel 4ever"?
[Miscellaneous Android Development] abstrkt1337:
And no Rom Like CyanogenMod
[Miscellaneous Android Development] Moriveon:
"thank" you, acer
[Miscellaneous Android Development] superdragonpt:
Acer's Kernel source is ok

Of course, there's no platform source, be grateful that Acer complies with GPL (kernel)

You probably don't know , how to work with MTK's code, it wont compile "out of the box"
[Miscellaneous Android Development] DustArma:
What can we do then? The B1-A71 badly needs support for performance features such as KSM and zRAM

What about repartitioning, is that possible? 1GB for the /data partition out of the 8GB is pretty low given the tablet has external microSD card support for media.
[Miscellaneous Android Development] Moriveon:
It there any guides how to compile kernel from MTK's source code?
[Miscellaneous Android Development] superdragonpt:
Hi

You need to learn some C first.

And of course, there's the whole Mediatek specifics that you'll need to learn.

Their tree is not common, Like other SoC's, and there's some common fixs and "hacks" that needs to be merged, so that it compiles OK, And boots.

I can fix and compile that kernel for you, i need to update my two others MTK kernels this weekend.

If i managed to get some free time, i'll start yours.

If there's enought people willing/waiting /requesting for an new kernel, i'll do it...

No ETA , working with MTK's code is an mess

Regards
[Miscellaneous Android Development] Optimissimus99:
Really good news for A1 810 Users, on android-hilfe.de I have found someone with 4.2.2 Rooted who could provide the SCATEER FILE :) maybe we have a Downgrade Method in a few days. If he posts file, I will redirect it to xda
[Miscellaneous Android Development] Moriveon:
We need not only a scatter file. We need a readback'ed files from that tablet!

If I'll send you guide to get files, can you translate it to german (I don't speak it) and send it to that user with rooted A1-810?
[Miscellaneous Android Development] abstrkt1337:
Try to build a kernel, it's will very good for our tab, but we can already forgot to have a CyanogenMod Rom i think ?
[Miscellaneous Android Development] Moriveon:
I read CM-related forums earlier, so I think there's no Cyanogenmod for MTK-based devices.

But we have another roms supporting MediaTek: Uberoid, LeWa, MIUI etc.
[Miscellaneous Android Development] abstrkt1337:
We can do by ourself some themed rom, a touchwiz rom or xperia rom
[Miscellaneous Android Development] capt730:
2 of my kids have rooted a1-810 on 4.2.2. If you send me the guide for scatter and readback, I can try to get what you need this weekend when I am off.
[Miscellaneous Android Development] drmad:
I'd be happy to begin with android 4.2.2 :)
[Miscellaneous Android Development] Moriveon:
Hmm, I think I can try to port A1-810's 4.2 to our A71s...
[Miscellaneous Android Development] abstrkt1337:
It's would be hard
[Miscellaneous Android Development] Optimissimus99:
[MENTION=5889030]FireDiamond[/MENTION]

I told him that he should do it with The MTK Droid Toolkit, right, or? (Map Blocks Option)
[Miscellaneous Android Development] Moriveon:
Yes, right.

Sad but true - we don't need help of that guy, because someone wanted to help (see previous page).
[Miscellaneous Android Development] Optimissimus99:
Better two people than no one :)
[Miscellaneous Android Development] DustArma:
The different chipset would make that a problem, no? It might be easier to port 4.2 from another MTK6577 device