yashsingh1/xdaforums huggingface dataset:
[Acer Iconia A500] Moscow Desire:
Hey there,

Dibbs asked me to chime in here. So not sure what exactly I can do to help.

First thing, when dealing with Fastboot and Adb, it helps to have a good USB cable. Not one of those cheap things that came with a camera or printer.

I'm not saying go out and buy some expensive cable, what I say, is if you have somebody with an HTC cable, borrow it.

Also, if it applies, connect it to the mainboard, not one of the USB ports on the front of a desktop pc.

These are things I have noticed in the past year.

Next, here is a link to an app that sets your partitions back on the a501. No, I haven't used it yet. No need to. However, it has 2 batch files.

http://d-h.st/iQX

501a and 501b

Now, granted I have not used this, however, the partition tables and BCT seem sound. My guess, is that if rearranges your partitions to correct order, and perhaps installs V8 bootloader.

So you are welcome to try it. Can't hurt.

MD
[Acer Iconia A500] Moscow Desire:
And also, just to bring me up to date, are you on the V8 bootloader?

Before you do anything else.

MD
[Acer Iconia A500] dibb_nz:
sorry for my spelling error...'trap':o

YES YOU WILL ALWAYS be returned to flexreaper UNTIL you flash a new rom, its just the way it works!!!! BUT having all your settings still is not what should happen

I've asked the acer a501 master to take a look for you....please be patient...he will be along as soon as he possibly can, ok?
[Acer Iconia A500] gerardpuducul:
Hi Moscow desire and thanks to take a look on my problem.

First thing concerning the cable : I had try with ACER micro usb cable and with another micro usb using in my work(I flash Android device with it)

So a quick resume of my context:

I have a FULLY WORKING A501 with

bootloader Skrilax V8

twrp 2.1.3

FLEXREAPER-ReliX

fastboot is working

I can enter into bootloader

I can enter into recovery

I can launch my ROM FLEXREAPER-ReliX

but every modification that i try to apply to my tab has no effect after reboot

- reset factory : process seems ok but when i reboot i have still all my settings

- install new application : application working but after reboot application has disappear

- try to flash new ROM : enter into recovery/ select zip THOR ROM/Aruma installer process and said successful but when i reboot I am still under FLEXREAPER-ReliX

- try to reflash bootloader V8 : Failed with AfterOTA, thunderB3rd

- try to fix Partition table with Badsector : Failed

(all screenshot here https://docs.google.com/document/d/1d9ASpp1AFtdKTRA5zxfD2bQuHAwMA4CKGb18XhcXnWM/edit)

So now i try your Babsector :

the tabs said :

Entering Acer Download Mode

but process failed :

H:\ACER\BadSector\Image>"a501 A.bat"
****************************************************************
* Before executing, be sure to delete recovery-from-boot.p *
* from /system to ensure recovery will stick *
****************************************************************

****************************************
* Reboot your tablet into APX mode *
****************************************

Generate your SBK with your CPUID from here :
http://vache-android.com/v1/index.php?site=sbk

Enter your SBK:0xA78B1E00 0xBB9D0301 0xFBD7E703 0x00022103
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x038061874100a497
macrovision: disabled
hdcp: enabled
sbk burned: true
dk burned: true
boot device: emmc
operating mode: 4
device config strap: 0
device config fuse: 0
sdram config strap: 0

sending file: flash.bct
- 4080/4080 bytes sent
flash.bct sent successfully
odm data: 0xb00d8011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader.bin
| 714409/714409 bytes sent
bootloader.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
setting device: 2 3
creating partition: BCT
creating partition: PT
creating partition: APP
creating partition: EBT
creating partition: GP1
creating partition: SOS
creating partition: LNX
creating partition: CAC
creating partition: MSC
creating partition: FLX
creating partition: AKB
creating partition: UDA
creating partition: GPT
Formatting partition 2 BCT please wait.. FAILED!
command failure: create failed (bad data)
bootloader status: partition table is required for this command (code: 8) messag
e: nverror:0x4 (0x4) flags: 0

Press any key to continue . . .
[Acer Iconia A500] Moscow Desire:
Yeah, sounds like corrupted data sectors on the BCT partition. Not sure if it's recoverable. Could be a physically bad sector in the emmc chip.

I don't mind pitching in, but, I have a busy schedule the next couple days, so won't be able to help you much till the weekend.

There's another app called "badsector". It's in one of the posts in either General, or Q&A. Never used it,m but operates on the same principal as babsector. If I'm not mistaken, might fix your issue.

Here is some info on your issue. This is pretty much the problem you have.

http://xdaforums.com/showthread.php?t=1691729&page=3

You may want to send a PM to Yaworsky in that thread, He may be able to help you out a little more than I can.

MD
[Acer Iconia A500] gerardpuducul:
No problem!! I am with this issue since 1 month now so i can live with it few days more! :good:

I had already try badsector and the result is the same!! ( see the summary of my try https://docs.google.com/document/d/1d9ASpp1AFtdKTRA5zxfD2bQuHAwMA4CKGb18XhcXnWM/)

I had try to find faulty sector but when i launch

nvflash --rawdevicewrite 0 1664 mmcblk0_start.img --bl bootloader.bin --sbk 0xA78B1E00 0xBB9D0301 0xFBD7E703 0x00022103 --go

I had

C:\ACER\root-3.2.1-V4\root-3.2.1\Image>nvflash --rawdev
icewrite 0 1664 mmcblk0_start.img --bl bootloader.bin --sbk 0xA78B1E00 0xBB9D030
1 0xFBD7E703 0x00022103 --go
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x038061874100a497
macrovision: disabled
hdcp: enabled
sbk burned: true
dk burned: true
boot device: emmc
operating mode: 4
device config strap: 0
device config fuse: 0
sdram config strap: 0

downloading bootloader -- load address: 0x108000 entry point: 0x108000
download command failed NvError 0x120002
command failure: bootloader download failed (bad data)
bootloader status: Bct file not found (code: 21) message: flags: 1073840124

I had sent him a message

PS ; Just one more thing ;

I had try to use fastboot

so I had launch

>fastboot boot recovery_thor1.7.3.img

and successfully reboot into CMW recovery but the problem is still there!!:crying::crying::crying:

Every modification that I with CMW (format/reset/install recovery/ROM) said ok at the end of process but dissappear when i reboot!!!:crying::crying::crying:
[Acer Iconia A500] gerardpuducul:
Hello Moscow Desire,

Will you have some time to help me on my problem?

Thanks
[Acer Iconia A500] LaizyJumper:
Is there any progress with such problem?

Apparently the same thing had happened to me. All the flash seems to be read-only. nvflash can't write or format anything. recovery writes without errors but all the data remains as it was.

Unfortunately my device is not working properly (as /data is read-only). Which makes it unusable.
[Acer Iconia A500] EmpereurZorg:
Same symptoms here, my A501 is in R/O mode... I try to root and flash without success :crying:

It was not an expensive tablet... :eek:
[Acer Iconia A500] Princepapa:
I'm having the same issue. Started about a week ago.

Just wanted to add my name to the list, not trying to necro a post.

Have any of you found a solution?
[Acer Iconia A500] Mratlan:
I'm having the same issue. Started about a week ago.

Just wanted to add my name as well to the list.

I was wondering if there is some strange connection.

I try to root, to flash. See also:

http://xdaforums.com/showthread.php?t=2529233

I'm quite desperate now. So ready for desperate operations. If any one as some last ressort idea...
[Acer Iconia A500] dibb_nz:
Hi guys, sorry you're not having much luck...

Gonna need some more info to help.

Were any of u running tegra-owners roms?

Have you flashed skrilax_cz unlocked bootloader at some point?

Also points to note - you cannot just root and flash any xda rom, you must unlock the bootloader which installs a recovery for you to flash your rom.

Root just gives access to /system. IF you are on a stock ICS rom use icsRoot here this will delete the boot.p file which left on your system will overwrite any custom recovery with the stock recovery on boot.

I see some of you have had the "bct error".

AFAIK there is only one file that will fix this and thats blackthund3rs apxflash tool. Apparently in order for nvflash to work correctly, u MUST use the bct from your tab. Which means you must "dump" it. You cannot use the default option here. You will need the latest version of the tool here.

The best way to go about this is it manually enter apx mode and then run the tool. Dump your bct and then exit out of the tool, disconnect your tab and power off. Reboot your pc and start the tool to put your tab in apx mode. I know it sounds over the top, but when you're having issues its best to do things thoroughly.

Once the tool has run and you've seen the big white PASS, you must go into recovery and do a FULL FORMAT of /system, /data and /flexrom. In effect, this should wipe any encryption and all of your data PLUS your rom, so you will need to flash a rom directly after wiping.

If you still have the bct error after running the apxflash tool, there is not alot you can do - perhaps using a tegra-owners rom will get u running as these roms do not require the unlocked bootloader hence no need for nvflash.

If you have run the babsector file here and instrctions to use hereand do not have the bct error, will need you to post the output in order to help.

rgds dibb
[Acer Iconia A500] Mratlan:
No Problem

At least not me. I run the 4.0.3 Stock ROM

No

I was unable to root the A500 with the version you linked to. I also Used a newer Version of the tool 7.2.0 as well, but on the end of the process the tablet did not reboot automatically. After a manual reboot the system was still not rooted.

Exactly, that is my problem.

So far, I always used the default option.

Here I need some help... I did not see a bct dump option. How to optain that Information?
[Acer Iconia A500] dibb_nz:
does icsRoot give an error or what makes you say it didn't work?

do you have "USB Debug" enabled in your tabs 'Settings'.

which file explorer are you using, have you 'enabled' rw access?

can you see "supersu" in your apps? If its there, then open it and "update the binary".

As you can see from the image below...you must be rooted to "dump your bct"

so we will need to know why "root" isn't working first
[Acer Iconia A500] Mratlan:
icsRoot runs to all steps without any error message. It detects the A500. Only on the end it states that it reboots the A500, but that does not happen.

After manual reboot I checked with titanium backup - it states that I do not have root access. After each reboot it returns to the state like before. Any installations, or deinstallations are reverted back.

100% Sure, I have enabled that.

Without root - that will not work. Right?

I completly agree. Is there a method to obtain, or dump BCT without root access?
[Acer Iconia A500] dibb_nz:
[MENTION=1090537]Mratlan[/MENTION]

Can u see supersu or superuser listed in yr apps???
[Acer Iconia A500] Mratlan:
No, I can not see these apps.
[Acer Iconia A500] dibb_nz:
Are you in the US...seems Acer are repairing out of warranty tabs, another poster, mylacuna, who was having troubles with the bct error contacted Acer Support today....
[Acer Iconia A500] Mratlan:
Nope, I'm from Germany. I have the tab since August 2011. So, I presume from your answer that you think it is a hardware problem?
[Acer Iconia A500] dibb_nz:
No I dont think its your memory chip, its this bct error and why tabs throw this error all of a sudden...I guess it could be a sign it may be on its way out but nothing you have posted points to it.

Well, seeing as the apxFlash tool is the only tool that deals with the bct error, we are a bit stuck until we can gain root access:confused:

There is a manual method of rooting here have you tried this?

The only other thing that comes to mind, is your tab is not being 'seen' by your PC. Check the drivers have installed when running icsroot tool(even if it does tell you a500 connected) check device manager for the adb driver. If you're doing this from win7, run all these tools as administrator. Win8 is not supported as far as adb goes, some have got it to run but most haven't.

One more thing, can you still boot? AND

have you tried data wipe using the rocker switch method??

dibb
[Acer Iconia A500] Mratlan:
OK, I try the manual method. It seems to work, but after reboot all changes are lost:

Full root for A100, A500 and A510 ICS. Simple method.

-

-

Device connected. Preparation for executing of the main script.

push: tools/su -> /data/local/tmp/su

push: tools/runit.sh -> /data/local/tmp/runit.sh

push: tools/mount.sh -> /data/local/tmp/mount.sh

push: tools/mempodroid -> /data/local/tmp/mempodroid

push: tools/getroot.sh -> /data/local/tmp/getroot.sh

push: tools/delroot.sh -> /data/local/tmp/delroot.sh

push: tools/busybox.sh -> /data/local/tmp/busybox.sh

push: tools/busybox -> /data/local/tmp/busybox

8 files pushed. 0 files skipped.

38 KB/s (840355 bytes in 21.516s)

980 KB/s (37273 bytes in 0.037s)

-

Preparation is finished.

-

Executing of the main script.

remote object '/system/bin/su' does not exist

The file "su" isn't created!

-

Not getting root! :(

-

Error!

- I could find the ADB Interface (Acer Composite ADB Interface) in the devicemanager. So I think that the PC sees the device.

- I could boot

- I tried to use a hard reset method with the display lock switch

That is a taff one...

OK, but that gave me an idea... what if I avoid reboot?

I changed the manual root - script:

getroot.sh

and deleted the line:

reboot

After that I find under:

/system/bin/su

I was able to install superuser. But when I try to run APX Flash Utilty the bct dump still not work. Is the reboot required for that? Does that help that I have a tempory superuserrights? Once I reboot I will surely loose the changes...
[Acer Iconia A500] dibb_nz:
oh heck m8, scripts are not my strong point, lol....I have no idea why your tab is stuck in this read only mode....

Sometimes your PC antivirus s/w will see these root files as trojans, maybe try turning it off while you run it? UAC on win7 can also do this...

I'm nearing the end of my box of tricks here:(

Have you tried a data reset from within android itself?? Bit drastic I admit, seeing as you can still boot.

So you're on stock 4.0.3, and never rooted or installed any custom roms??What actual android build are you on? There has been an update I seem to remember...

OK I'm off to have a look around and see if I can come up with something...
[Acer Iconia A500] Mratlan:
...you are not alone with this ;)

That was a problem at the beginning. My Antivirus was was complaining. So I switched to a not so important older laptop and disabled UAC and antivirus.

Neverless, I appriciate your contribution so far very much.

Yes, but it behaves as read only. I do not care about the data on the tablet.

Correct

4.0.3

Current Image Version:

Acer_AV041_A500_1.062.00.EMEA_DE

I will have a look into this solution:

http://xdaforums.com/showthread.php?t=1691729&page=3
[Acer Iconia A500] dibb_nz:
EDIT: pm'ed u

Hmmmm can you clarify what happened with the factory data reset process-

tab vibrates

black screen

white text format data then format cache???

tab vibrates and reboots

and you can confirm you've tried via settings and via button combo?

Seems this is a new update? it may have broken the tools

Have you tried contacting Acer - tell them your since receiving an update your tab in stuck in read only, you've tried resetting but nothing sticks - worth a shot m8!
[Acer Iconia A500] Mratlan:
I could confirm that the tab vibrate, then black screen, but the white text is not coming, it goes into a reboot.

I do not think so - the problem was not directly after an system update.

No, because there seems to be no direct connection to a Acer update.

If you have a look into this thread there are the same problems but also not after an Acer update and also with different version:

http://xdaforums.com/showthread.php?p=47654106#post47654106

Acer_AV041_AA500_RV05RC01_PA_CUS1
[Acer Iconia A500] dibb_nz:
Yes there does not need to to be a direct connection to an update or user error, there are numerous cases of tabs failing "no apparent reason".

If the nvflash process fails to recover the tab then this 'points' to the emmc failure. Acer understand this is a hardware related issue which has affected many, many users and they have had no issues in replacing the mainboard.

Unless one of the devs like [MENTION=4518389]blackthund3r[/MENTION] can help with root - I'm not sure theres alot more I can help with -

Have you tried asking yet at tegra-owners?
[Acer Iconia A500] Mratlan:
Yes, I opened there a thread. Thanks again for supporing me so far.
[Acer Iconia A500] gerardpuducul:
SO I had exactly yhe same problem

So i had search some information about emmc

I had found that inside the a500 there is a sdin4c2 chip : http://www.techrepublic.com/pictures/cracking-open-the-acer-iconia-tab-a500/63/

I had found a datasheet for this chip : https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CDIQFjAA&url=http%3A%2F%2Fomapworld.com%2FiNAND_e_MMC_4_41_IF_data_sheet_v1_0%5B1%5D.pdf&ei=VNLBUomrFeO70wWZtYEo&usg=AFQjCNHtdBT6H2eg-NufW42yVrnDBXEgSg&sig2=F5Zkz387ShY175h5rjz9qQ&bvm=bv.58187178,d.d2k

specially

2.9. Enhanced Write Protection

To allow the host to protect data against erase or write, the iNAND supports two levels of write

protect command10:

• The entire iNAND (including the Boot Area Partitions, General Purpose Area Partition, and

User/Enhanced User Data Area Partition) may be write-protected by setting the permanent

or temporary write protect bits in the CSD.

• Specific segments of the iNAND may be permanently, power-on or temporarily write

protected. Segment size can be programmed via the EXT_CSD register.

For additional information please refer JESD84-A441 standard.

Maybe our problem come from this CSD bit? But how to fix it?:confused:
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
Hi! I attempted to root my S2 via a method I found here whereby I flash an insecure kernel then root using S2 root. I followed the guide to the T and still my phone is only ''partially rooted'' according to rootchecker and no root apps could be granted su access.

I am running ICS 4.0.3, Baseband Version XXLPS.

What should I do next or should I accept defeat and leave this phone unrooted? What could I have done wrong?

Thanks in advance for reading. :)
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
flash the latest siyah kernel v3.4.1 either from ur recovery (use siyah .zip file) or thro Odin ( use siyah .tar file) and then see:)
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
Thanks Sun!

I have downloaded the Tar file. I assume what I do now is flash it onto my phone and retry S2 Root again?
[Galaxy S II Q&A, Help & Troubleshooting] Immortalis:
If you flash Siyah you will be already rooted.
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
Ah, then perfect. Thank you!
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
Either I am an uber noob or there is something wrong!

I downloaded the Siyah 3.4.1.tar kernel from gokhanmoral and flashed via odin and the phone sat at the boot screen with the little yellow triangle on it. I left the phone on and running like that for 10minutes.

I flashed my insecure kernel back on from last time (the one I used when trying to root using s2root) and it is fine again.

Anywho I am back to square one! -.-
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
well thats really weird ma8, is ur phone I9100 or I9100G:confused:

ps- always try to root ur phone by a proper CF-root kernel, rather than some insecure kernel
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
I9100! It's very strange and I'm dying to check out some roms!
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
so u havent tried the Cf-root method intially to root ur phone right
[Galaxy S II Q&A, Help & Troubleshooting] AndroidUser1192:
Nope just the S2 root method and now Siyah.
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
ok buddy follow this steps to reroot ur phone in a proper manner.

1) Dwnld the official ICS firmware(4.0.3) and flash thro odin

link Here

2) after that please dwnld the Matching Cf- root kernel and flash thro' ODIN

link Here

ur phone will be rooted properly and should wrk fine

ps- read the OP of both the threads carefully and follow the instructions over there to root ur phone successfully
[Galaxy S II Q&A, Help & Troubleshooting] Phil3759:
If you only need proper root, no custom or insecure kernels and no yellow triangle, look at the guide in my signature. Worth the try
[Galaxy S II Q&A, Help & Troubleshooting] blaze_s2:
Hey i had a similar problem. There is a superuser n buybox zip file that you will find on one forum here,that is about basic how to root. Copy those files to your phone then go to recovery and apply zip. I had a hard time with my phone partially rooted but thay solved it :D
[Android General] usmanjavid:
While the Nokia N9 might be Nokia’s first and last efforts at a MeeGo device, it certainly does not meant that developers for the handset have given up entirely as well. As you can see in the photo above, one particular developer has uploaded the picture onto his Twitter account, clearly showing what appears to be Android 4.1.1 Jelly Bean running on the N9. We can’t tell if this is for real or if it is a fake, but if it is real, this is most definitely good news for N9 users who might be looking to give their device a new lease on life, much like how the HP TouchPad saw a recent surge in popularity due to its ability to run Android ROMs on it. It’s also hard to tell how far along this port is, but we will be sure to keep an eye out for more news regarding its status and availability, so stay tuned!:laugh::laugh::laugh:

i hope for n9 forum and xda work on this greetings from pakistan
[Android General] MissionImprobable:
Pretty cool. I like the design of that device, as well as the Lumia, so this might make for a fun project phone.
[Android General] hackint0sh:
Hey,

how can we get behind this? Want to know how to get this Android, etc. Would also like to see a Nokia N9 section.. think it's one of the most amazing smartphones ever built.. like N900. Classic.

As I recently got a brand new n9 64gb as a present by my girlfriend today <3 :good::laugh: :silly: *happy*

Kind regards from Germany
[Android General] deadlyheart4u:
I am ready working over the android port for the N9 as i have it with me as my 4th spare device. If i get 100 people at least asking or supporting this, i am ready starting this.
[Android General] Eloquence:
Please develop this! I just got this phone to run Android on it! Please start developing 4.3 for it! :)

The people here at http://forum.nitdroid.com/ would really love it!

-Elo
[Android General] Sleeper1979:
Would love to see that!

Really hope that you will start working on the N9. :fingers-crossed: I really love the phone, and I think it's a shame that it was pretty much left to die by Nokia. I've heard rumours about maybe a Jolla Sailfish port? I ain't no genius when it comes to programming, but, I do have a Nokia N9 and the will to help out in whatever testing you might need done. :laugh:
[Android General] Gazzasore:
Any Hope of getting Lollipop on a N9
[Galaxy S I9000 Q&A, Help & Troubleshooting] AndroidNoob0:
hi

i have a question

someone is offering me a good deal with S1

but the problem is that the phone is Korean so i've been wondering

if i installed a custom ROM for it with the support of arabic language will it work?

in other words will at least English and Arabic work together?

this is the mobile version:

SHW-M110S

It's Korean

thanks in advance

help
[Galaxy S I9000 Q&A, Help & Troubleshooting] AndroidNoob0:
help