[Q] Downgrade from 3.2 to 3.1 A500 - Acer Iconia A500

Hi,
I originally had 3.1 on my device with the A500 OTA firmware, it was rooted originally. I then updated to the 7.something 3.2 OTA for the A500. I wanted to downgrade so I tried installing a lower one using the sd card method. Well needless to say it didn't take and the tablet wouldn't boot. So I tried basically all of the roms on the ROM list page. None of them worked except the A501 3.2 version 4.something. This one I can't root either. I'm guessing it isn't possible get root at this point until a root hack becomes available to install clockworkmod?
Also will running a lower version number system for the A501 cause problems on the A500?
Thanks in advance!

If you look at the ROM list page there's now a couple of 3.2 updates for the A500, if you flash one of those you'll at least be back on the correct firmware for your device. Unfortunately I have yet to find any way to either downgrade to 3.1 or to get root on 3.2 ... so for now I think you're stuck on 3.2 without root.
I'm keeping my fingers crossed that someone with better knowledge of such things than I do will have a solution for 3.2 root sometime soon!

Go to this thread and follow its instruction: http://forum.xda-developers.com/showthread.php?t=1113878

eksasol said:
Go to this thread and follow its instruction: http://forum.xda-developers.com/showthread.php?t=1113878
Click to expand...
Click to collapse
Those instructions do not work for downgrading from 3.2 to 3.1 the tablet will be left un-bootable.
You can however use those instructions to upgrade to 3.2 from 3.1

solution
vas sur ce lien, c'est la seule solution pour le moment je crois! :
http://forum.xda-developers.com/showthread.php?t=1276227

Merci beaucoup. j'espere que ca functionne avec mon a500.

The 3.2 OTA update uses a different boot loader. If you perform the Acer update, you are stuck and loose root until someone cracks the new boot loader. Who knows how long that will be, but hopefully soon. Once you get root access back, install clockworks and do a full backup before you ever do another update so you can always restore your old ROM if something like that happens again.
It happened to dozens of people on this Forum. I am Glad I read about it before it happened to me. I upgraded to 3.2 by flashing Taboonay 2.1 which used a different boot loader.
Good luck. I hope they crack it soon.
Edit: Actually, someone started a post with instructions on downgrading and getting root back if you already did the OTA update to 3.2. Look at the thread "Root your A500 after 3.2 OTA update and losing root.."

The link provided ( http://forum.xda-developers.com/showthread.php?t=1276227 ) is successful in downgrading. Thanks once again.

You might want to check this method first. It uses an official Acer 3.0.1 update with an earlier bootloader (compatible with CWM/itsmagic), that you can root.
This is likely less destructive than rebuilding the ROM from scratch using nvflash.

Related

Is anyone else getting a 4.0 OTA notification?

This may be a known issue but my wife's (non-rooted, completely stock) A500 has been getting a 4.0 OTA notification since yesterday. It says it's invalid, after downloading it, so I ASSUME it's not actually for this device but is that the case? If it is for the A500, do I need to do a factory reset to get it to update?
Thanks, and Merry Christmas!
What version is it running currently? 7.014.02
I have not seen anything since the 7.014.01/02 releases a few days back.
It would be nice to see Acer taking the lead on releases but I will believe it when it happens. The. 02 release did have a new to me update screen when it installed....
Wowsher
I think I know what one of the issues is- This must have been some really old stock (bestbuy.com) because it's running 3.0.1 and the kernal version is 26.36.3-00001-g9b3ce2b. Is it possible that it's somehow "skipping" the OTA updates in the correct order (or maybe they aren't available OTA anymore?) and thus giving me the "invalid" message?
yep would not surprise me at all... you should be able to download from a thread in the rom area a thread by vache has links to almost all of them.
You should probably change the thread title if you can.
Wowsher
There have been others with similar issues.Seems like acer did not and is not pushing the updates to some devices.
I would first call acer if you. Not likely to help but would atleast let them know they have issue.
For a right now fix.
Get iconiaroot. Root tablet.
Get acer recovery installer. Install custom recovery.
Look on forums for a stock 3.1 or 3.2 rom.
You can get a ore rooted rom if you wish but would kill all updates in future.
There are lots of information in the dev forums on step by step instructions and downloads.
Be careful fallow instructions.
Good luck.
The 4.0.xxxx update, is an update for UI. It should come in 2 notifications for stock tablets.
The first, is a preparatory update. The second, is the actual update.
Note, if you have a rooted tab, as some people can tell, it is not advisable to take any OTA update from acer.
In the forum, if you want to take the update, there is a thread which has rooted versions of these updates.

[Q] OTA Update Issue

Hi to all,
i've buy this tablet used from a collegue of my friend.
He give it to me with a modify rom with 3.1 firmware (if i don't wrong, tha name of the rom are "Picasso-ROM" but i'm not sure about it).
I wanna restore the original firmware on it to take the last firmware 3.2.1 (Acer_A500_7.014.14_COM_GEN1) but I can not seem to update to that version of the tablet !
At the moment with the EUUs_SBK_Acer_A500_1.016.05_COM_GEN1 i was able to restore the original Acer recovery (lost with old custom rom) and with OTA now i've the follow update : "A500_7.006.01_COM_GEN1" but the version of Android still 3.2 !
I would not like that when ICS comes out I will not be able to update !
How can i force it ? There is a link where i can download the OTA update ?
Thanks for your support !!
There is no way to force OTA unfortunately - if you've managed to receive the OTA 3.2 then there should be no reason you shouldn't receive 3.2.1 just give it a few days more, some here have had to wait 2-3 weeks for it so I wouldn't panic just yet
Hi,
Did you receive the 3.2.1 yet? I had the same problem yesterday...
tks.
LainX said:
Hi to all,
i've buy this tablet used from a collegue of my friend.
He give it to me with a modify rom with 3.1 firmware (if i don't wrong, tha name of the rom are "Picasso-ROM" but i'm not sure about it).
I wanna restore the original firmware on it to take the last firmware 3.2.1 (Acer_A500_7.014.14_COM_GEN1) but I can not seem to update to that version of the tablet !
At the moment with the EUUs_SBK_Acer_A500_1.016.05_COM_GEN1 i was able to restore the original Acer recovery (lost with old custom rom) and with OTA now i've the follow update : "A500_7.006.01_COM_GEN1" but the version of Android still 3.2 !
I would not like that when ICS comes out I will not be able to update !
How can i force it ? There is a link where i can download the OTA update ?
Thanks for your support !!
Click to expand...
Click to collapse
I recently reverted from the leaked ICS 4.0.3 using ATX to flash back to stock 3.0.1. Once I did that, I tried to OTA update to 3.2, without success. So I downloaded the 3.2 update from Vache's thread, renamed it update.zip and threw it on my sdcard. Rebooted into stock recovery and updated. Once I did that, I went into settings and checked for OTA update, and it worked. So I had the same problem with OTA updates, but running 3.0.1. Perhaps downloading the 3.2.1 update will allow you to get OTA updates in the future (it should).
If you want to make sure, try downgrading to 3.0.1, then downloading the 3.2 update from Vache's thread. Then doing OTA update from your tablet and it should work. Hope that at least gives you some inspiration to try some things!
The above post is a viable way..
But also if i remember right.. You can Take any full complete rom pushed by acer.Flash it with the stock recovery.. With the catch the update rom version has to be region matched and a NEWER ROM VERSION.
Hope this makes sense. Its the procedure i have used in the past to test out a OTA.
People are doing this same thing to get the ICS LEAK. FULL ROM. acer will let you move forword as each full push from them added fixes for previous root ability and so on..
That brings me back to thinking ACER Leaked this ics rom just to see how easly it can be broken.
i want to upgrade my andriod version from 3.0.1 to 3.2 or 3.2.1
build number is acer a500 1.016.05_com_gen1
i can't get it viia normal update so if anyone can help me by link that can upgrade it i will be grateful

[Q] official ics

hi, my brother and me, we ve got two acer iconia a500 with 32gb.
my brother rootet his iconia 1 month ago and installed an ics rom.
now i bought my rom with normal firmware and no root.
i updated it to 4.0.3.
now my brother wants the official firmware on his iconia back.
is there a release of the ofw or is it possible to make a backup of mine
and he flash this rom to his iconia (so its nearly the same)
im looking forward for a positiv answer
Hi there,
Best bet would be for your brother to revert back to stock honeycomb and then allow the OTA updates to update him to the official ICS. There are many guides here on XDA on how to do that. That is likely the safest bet based on what bootloader he might be running etc.
can you please give me a link for a guide to getbstock rom back. hard to find something, aspecially when you are german
I went back to stock 3.0.1 and did updates up to 3.2.1 then i install Iconia tab update from the playstore when i got upto 3.2.1 then checked for updates again and it pushed ICS to my tab hear is the link method one worked for me method two did not let me update i kept getting the your device is upto date message. http://forum.xda-developers.com/showthread.php?t=1276227
Method two would be the best if you are not able to get your cpuid did not work for me but might do for you good luck need anymore help post back hear.

[Q] Eee pad transformer TF101G rooting

Hi I'm new to the android world. I want to root my transformer 101g. Van anyone help me to find the best tool and how to do it?
What official ASUS firmware are you on? Also don't update it if you can help it, otherwise you might have to downgrade.
Rooting TF101G 4.0.3
I'd also like to root my tf101g model BB0. Unfortunately I have upgraded to ICS already.
How do I downgrade? The other threads in the forum suggest it is not possible for ICS and the TF101G model.
Specify what firmware version you're currently using because that's the most important thing when rooting. Different firmwares have different methods to rooting.
I have the latest update of ICS, 9.2.2.4
Good, that version works with my One-Click PERI tool!
==
It's in my signature below, click PERI and download, plug in your TF to a windows computer and follow instructions :] Good luck!
(Barring that, you could also use wolf's method 3)
Thanks, it is encouraging to know it should work on tf101g bb0 with latest ICS update
Since I do not have a windows computer around I'll try following a step by step guide, will try wolf's method.
Wolf's method works xD It's what I packed into PERI.
I'll also be releasing an on TF app that does it for you, no computer required, but not for a few days as I have to figure out how too put it together properly.
Wolf's method #2 downgrade to honeycomb then razorclaw worked

[Q] Is Acer still distributing the OTA ICS update for the A501?

Hi,
I have a German A501 that got the ICS update in August 2012. Since then I had rooted it, but wanted to return to stock unrooted ICS in order to be able to run the Excitor DME app.
The unroot process failed, and I went through a series of unsuccessful SD card updates.
I ended up using the EUUs to get the tablet back to Honeycomb 3.01, and then updated via SD-card to 3.2.1 but I seem to be stuck there.
I have installed the Acer Update app, but there is no update available for my Tab. Is Acer still distributing the upgrade OTA?
What other route could I take back to a stock, unrooted ICS?
rfka01 said:
Hi,
I have a German A501 that got the ICS update in August 2012. Since then I had rooted it, but wanted to return to stock unrooted ICS in order to be able to run the Excitor DME app.
The unroot process failed, and I went through a series of unsuccessful SD card updates.
I ended up using the EUUs to get the tablet back to Honeycomb 3.01, and then updated via SD-card to 3.2.1 but I seem to be stuck there.
I have installed the Acer Update app, but there is no update available for my Tab. Is Acer still distributing the upgrade OTA?
What other route could I take back to a stock, unrooted ICS?
Click to expand...
Click to collapse
Alternatively, could one of the German users point me to a ROM that has allowed them recently to upgrade to stock unrooted ICS OTA?
Thanks
Robert

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