yashsingh1/xdaforums huggingface dataset:
[Android General] nikagl:
Please remove the entire quote, this is impossible to read and you are removing attention for old posts.

If the tablet does not show up in device manager try:

* different USB port

* different USB cable

* different laptop

Regards,

Nika.

---------- Post added at 10:38 PM ---------- Previous post was at 10:34 PM ----------

Z410 is a phone, you're posting in the wrong thread. You should be here:

http://xdaforums.com/android/development/guide-firmwares-roms-cwm-root-acer-mtk-t2945933/
[Android General] sufoc:
Doesn't work with Acer A1-811, Android version 4.2.2, Build Acer_AV052_A1-811_1.095.00_EMEA_PKT, Kernel 3.4.5. No progress bars appear at all.
[Android General] nikagl:
Use other cable, or other laptop

Verstuurd vanaf mijn S56 met Tapatalk
[Android General] sufoc:
I don't have another laptop. Should I try reinstalling Windows from scratch?
[Android General] nikagl:
Usually it's a faulty cable or USB port. Sorry, you'll have to try as it should really work...
[Android General] Congpn:
Hi Nikagl,

Your instruction had worked well with my A1-811 untill yesterday, today i face an error "BROM ERROR: ??( 8)" during flashing, do you have any idea for this?
[Android General] sufoc:
I rooted it with another cable and USB port and it worked BUT I still can't do any root actions. I can't install xposed or adblock or remove preinstalled apps. I have SuperSu 2.46 installed and Root Checker detects the root properly.

EDIT: /system is still read-only
[Android General] Vsx06:
1GB = FAT - No Name, 4GB=FAT32 - SanDisk (Class10), 2x8GB=FAT32 - GoodRam & Kingston (Both Class10 with U symbol), 16GB=FAT32 - Samsung (Class 10, UHS)

Currently my only 64GB SD is sitting in my ALE-L21, to many important stuff on it to fool around.

I just feel completely defeated ;(
[Android General] sufoc:
Please help me, I did everything as written in this guide to root A1-811 and /system is still read-only, what did I do wrong? I can access data/data and Root Checker recognizes root, but some of the apps I use have anti-root protection and I can't even install xposed to use root cloak.
[Android General] Just_Another_N00b:
Write access to /system is still not allowed in normal mode, but in recovery mode you can modify this partition. I know that is not enough for 'normal' stuff, but be happy you've got a rooted device with a non-std recovery...
[Android General] sufoc:
I see, thank you. What can I do in recovery and how?
[Android General] nikagl:
What do you want to do?
[Android General] TreySmee:
Looking to clear up a couple things.

Hey guys, I have a couple questions/issues. I have an A1-810 with:

Image version Acer_AV052_A1-810_RV26RC06_PA_CUS1 and Build number Acer_AV052_A1-810_1.116.00_PA_CUS1, Touch FW Version FT0-850-13032500

kernel 3.4.5 and Android 4.2.2

It is rooted with the toolkit method, BUT, I did have a bit of an error when I attempted to "switch internal and external SDcards", which basically resulted in me no longer being able to mount my external card. I realize from, my linux experience, all I really need to do is to replace/edit the fstab file and that should be fine again, so no big deal. So my questions/issues are:

I want to do a complete wipe and factory rest of my device first. (Will this return fstab to its original?)

I dont see an EXACT match for my particular Image/Build.

(I'm assuming the WW version is fine to use?)

I want to upgrade to KitKat with full RW access to the file system. (root)

Im not looking for hand holding. Its just that I've noticed some subtle differences in approaches and also that some seem to prefer not to upgrade to KitKat for some reason. Isnt KitKat more secure since anything under 4.4 is susceptible to that horrible security hole?

So, I'm looking for suggestions. You guys have done so much and written some very nice stuff, including some very helpfull and well written guides. Im looking mostly at shreps, FireDiamond, vache , and for cool guy of the year: nikagl whom I hope helps advice me on this :fingers-crossed: Thanks for all you guys do, I'm a lurker and hardly ever post for years but you guys are very much appreciated.
[Android General] nikagl:
Hi [MENTION=5159599]TreySmee[/MENTION],

I think I have found "Acer_AV0K0_A1-810_RV0BRC02_PA_CUS1_user_signed" (=KK). If you need it, send me a PM and I'll give you a download link. I didn't find an AV052 (=JB) version of that SKU :(

To answer your questions:

1. Factory defaults will not change your /system, so not your fstab and such either. Factory defaults will simply format /data and /cache and such. When you want to go back to stock after running something like the root from scratch method in the other thread, or after loading other ROMs like WW_GEN1, etc., you need to restore the stock ROM (see above) using SPFT.

2. See above. Hard to give advice. Loading ROMs (for same device/model, so only A1-810!) with other SKU (WW_GEN1, etc., instead of PA_CUS1) mostly works. Usually I would stick to the SKU the original device had, but if for instance it's never upgraded to KK and you do want KK, I would move to another SKU... but handle with care. Although I have not heard of any differences in hardware, it is possible and Acer has done it in some rare occasions....

3. I prefer KK for many reasons. Although, stock KK might give problems. For instance, KK denies write for apps to folders that are not intended for that app. Root or other modifications (which I had also included in the root from scratch method) can fix stuff like that...

Sooo... let's wait a little longer, maybe [MENTION=4493088]Shreps[/MENTION] has some advice, and otherwise go ahead and try WW_GEN1 release. If it doesn't work you can go to the PA_CUS1 release mentioned above. But going back to JB with PA_CUS1 is going to be virtually impossible as I haven't been able to find that (yet)...

Hope this helps...

Regards,

Nika.

---------- Post added at 10:56 PM ---------- Previous post was at 10:49 PM ----------

One more thing, the recovery installable zips for JB is available from Acer website directly:

http://global-download.acer.com/GDF...&Step3=A1-810&OS=ALL&LC=nl&BC=ACER&SC=EMEA_18

Download it and extract update.zip onto your /sdcard and install it using your recovery. It also formats your /system and installs a new boot.img so it should work for reverting back to stock JB on PA_CUS1...

Regards,

Nika.
[Android General] sufoc:
If possible, I want to install AdAway, xposed and Freedom apk, is there no way to do it after all? I don't really need root for anything else and some games I play have anti-root security, so without xposed I can't even install RootCloak to hide it.
[Android General] nikagl:
Adaway is explained here (I searched for it, didn't use it yet this way)

Xposed just install it from Playstore and use the Recovery method (in settings, install mode)

Freedom I don't know... are you sure this requires writable system? I just saw it needs root...

Regards,

Nika.
[Android General] TreySmee:
Any idea what differences there is in each ROM? Is there any resource that you know of that outlines the differences in all these ROMs for the exact same device?

Have we seen any evidence of anyone (on these forums or otherwise) having an issue due to flashing the "wrong ROM" for the same device?

I swear that at some point I was able to select "Android 4.4 KitKat" on the drop-down menu here: us acer com/ac/en/US/content/drivers/4756;-;A1-810[/url]

Any idea what the differences are in these recoveries? :

AV052.RV33RC01.AV0K0.RV0BRC02.PA.CUS1	305.0 MB	2015/07/17

AV052.RV26RC06.AV052.RV33RC01.PA.CUS1	137.0 MB	2015/07/17

AV052.RV26RC06.PA.CUS1	482.0 MB	2014/03/30

Also something puzzling me is under the "Documents" section we find:

Kernel Source Code (Android 4.2 Jelly Bean)	1	237.7 MB	2013/09/06

Kernel Source Code (Android 4.2 Jelly Bean)	1	180.2 MB	2013/06/06

I've downloaded all of these things just in case they get taken down or something but I havent taken a look at what they actually are...
[Android General] sufoc:
I managed to install AdAway and xposed, thank you! Yes, I get an information at startup that Freedom needs writable file system. But since I could install xposed now, I tried using Lucky Patcher instead and it kind of worked. Thank you for the help!
[Android General] nikagl:
Nope, sorry, Acer never really posts release notes.

No, I have monitored these threads for quite a while now and never seen someone with A1-81x that flashed a different SKU and had problems. We did see it with some phones (Z410) however (although no proof yet it was caused by the different SKU).

I have never really understood the Acer download site. For the differences in the ROMs (these are update zips, a recovery is the software you are using to install them), it's probably because some of them are full ROMs (AV052.RV26RC06.PA.CUS1) and others are updates from RV26RC06 to RV33RC01 and from RV33RC01 (JB) to RV0BRC02 (KK). So if you install RV26RC06 on JB and then manually install the other two on top (in the right order) you are at RV0BRC02 on KK. Those recoveries should also be offered to you via OTA btw...

For the kernel source code - I have no idea. Maybe it simply got updated? Too bad KK kernal source code was never released because that is what prevents the /system to be mounted as r/w (see above comments).

Maybe [MENTION=4493088]Shreps[/MENTION] has a better explanation?
[Android General] Shreps:
You're right :)

They have to publish Kernel code source for any major security fix or kernel (Linux) major update according to the GPL Licence, but they never post the KK version...
[Android General] eggox:
hi it appears a link in the first post has been deleted.

Unlock Bootloader/Preloader + Flash CWM Guide by [MENTION=1089616]fired[/MENTION]iamond

what i want to do is unlock my acer B1-710 bootloader and im not sure how to go about doing this.

can someone point me in the right direction please.:good:
[Android General] kassad73:
Brick my device, but that doesn't work

Hi, i'm trying for several hours but it doesn't work.

The drivers are here, all the steps are following but when I plug the device with "a good cable, on a direct back USB port", after having click on "Download", nothing happens, the device reminds shutdown even after 20 minutes...No green circle...

Don't know what to do...

Can somebody help me ?

Thanks

[*]A3-A20FHD

[*]Make sure only SEC_RO partition is checked, you're in "Download Only" mode and click on "Download": SPFT is now waiting for a device a COM port to Flash

[*]/!\Remember never use the Format pattern to download versions.

[*]Remove your battery from your device, or unplug it, or make sure your device if off

[*]Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)

[*]The flashing process will start automatically : do not unplug your USB cable !

[*]Wait for a Green Circle saying the flash process is finished
[Android General] nikagl:
What OS are you on?
[Android General] kassad73:
I'm on Windows 10, i authorised non signed drivers, the mtk driver is recognized and active when i click on Download button on smart phone flash tool.
[Android General] nikagl:
Ok. Just checking as Win10 requires different procedure I read somewhere in this thread. Not sure then, I'm afraid I'd still advice to try on another computer, another port or another cable...

Anyone else seen this before?
[Android General] kassad73:
Thanks, i tried another computer but same OS, another port and another cable... I can try another OS but not before 3 days.

Envoyé de mon A0001 en utilisant Tapatalk
[Android General] kassad73:
other solution : via adb sideload

Hi,

i try the solution posted here but it never worked for me... BUT ! I find another way which is a mix of several :

1. Install adb (http://developer.android.com/sdk/index.html)

2. Place this rom

Sds_Acer_AV0K0_A3-A20FHD_1.023.00_WW_GEN1.zip

in the folder

C:\Users\yourname\AppData\Local\Android\sdk\platform-tools

3. plug the tab, switch on recovery, choose install from adb

4. launch a prompt command in C:\Users\yourname\AppData\Local\Android\sdk\platform-tools

adb devices

5. a serie of number appears

6. write : adb sideload Sds_Acer_AV0K0_A3-A20FHD_1.023.00_WW_GEN1.zip (ou raccourcir avant le nom du fichier zip ...)

7. it loads on the tab

8. it installs

9. bingo !!:good:
[Android General] davidam091:
Well, before finding this thread, I attempted to install a version of CWM that I found elsewhere that was supposed to work on my A1-810. It didn't. Can anyone help me get out of a bootloop?
[Android General] nikagl:
Not really enough detail to work from. What CWM did you flash exactly (name, website, etc., etc.)? Flashing just CWM usually does not cause bootloops. What else did you do? What did you flash from CWM?

In all cases, flashing a stock ROM should always fix bootloops but will also wipe your device:

http://xdaforums.com/showpost.php?p=62779402&postcount=809

If it really only was CWM, you should also be able to flash just the stock recovery again. Try it with the above steps but only select recovery. You can also try the steps from the following post, but use the recovery from the above pack (as that post is A1-811 only!):

http://xdaforums.com/showpost.php?p=60137778&postcount=529
[Android General] davidam091:
Thanks. I'll try that soon as I get home. I'll also try to get you the info of which file I tried to flash.

If I can put stock recovery back on, can I follow that up with the proper CWM? Basically, I wanted to be able to back up before I try to upgrade from 4.2. I haven't been able to find a custom ROM for my device, but I'd like to do that as well. I'm going to keep digging around here and see what I find.

I got root about a year and a half ago with the help of a guy named Klown Kevin from here. It was a very difficult process, but thanks to him, we got it. Does the method you get root effect how the rest works?
[Android General] nikagl:
Yes, CWM should be fairly easy, at least that's how it is for A1-811 (which I have). Just flash unlock file and new recovery, and you're good to go. After flashing CWM you can flash SuperSU to gain root for instance. Custom ROMs do not (yet) exist...
[Android General] davidam091:
Tablet is pretty old, and frankly nothing to write home about, so I'm not gonna hold my breath for a ROM.

By the way, I'm in the market for another tablet. I'm looking for something cheap, maybe off-brand. Preferably something with usb and SD ports, easy to root and with a custom recovery and ROM already available. Hopefully decent specs. I'm open to refurbished. Any suggestions?
[Android General] Vlatchey:
Can I flash this on stock recovery? I flashed the stock os from the acer site on the stock recovery on acer b1 710 8gb and my touch screen don't work after installing the os. Can you please help me fix my tab some how. I just want to get back in the factory state i cant do that with factory reset/delete data/cache because i deleted system apps. I found tutorial for unlocking bl and cwm but links dont wok. Dont understand what can i do with these files. Help
[Android General] dharmilareolaleye:
Please, i need your help. I bricked my tablet(A1-811) when I was trying to install xposed installer now i cant restore it back. I tried flashing a stock rom but it keeps stopping halfway when it gets to the download part. This is not my first time of flashing a stock rom but for some reason, this time it wont complete the flash. My system's OS is Win10. And yes, i have flashed it with the OS a couple of times before and it worked.

I even tried the guide you posted

http://xdaforums.com/showpost.php?p=62779402&postcount=809

and the same thing happened, stopped halfway at around 42%.

Please, what do i do? What am i doing wrong?
[Android General] nikagl:
haven't seen that before and i flashed my tab a million times. I would try some other laptops, pc's, usb cables or usb ports, that's all i can think of... anyone else any tips?
[Android General] davidam091:
Thanks for the help and the patience. I finally got a chance to get this going. Ran into a problem right away: when I connect the tablet to my PC, it continuously connects and disconnects. I tried both troubleshooting steps, unplugging the battery and pressing reset 3 times, but no luck. Any ideas? Should I try anyway? When it says press reset 3 times, it means 3 short presses, right? And the reset is the lower pinhole, right? The top pinhole has a small icon printed by it that looks like a magic wand. I'm assuming it's some kind of manual eject for a microSD. So that leaves the lower for reset.

Please let me know if there's something I can do to try and fix the problem. Or if there's some way around it. It just keeps connecting, vibrating, and disconnecting over and over again.

EDIT: Another issue: the guide you linked for flashing A1-811 recovery (2nd link in your post) has a file, unlocking archive. It contains some files that I need for this process, like secuoff.img and preloader_unlocked.bin. I don't have the corresponding files for the A1-810 as no link for this particular device is found on that page. The downloads from the first guide you linked to did not have these files. Any ideas? Thanks again.

EDIT AGAIN: So, I found secuoff.img in SPFT Firmware - A1-810 [4.2]. I didn't find preloader_unlocked.bin, so I used preloader.bin also found in SPFT Firmware - A1-810 [4.2]. I used CWM_6.0.3.0_A1-810-Shreps in place of CWM-6.0.5.0_A1-811-eagleowl.img since that's the CWM I found from the main page. The first 2 steps worked: I got the green circle. Upon attempting the final step (the recovery), I instead got a popup stating the following:

BROM ERROR: S_SECURITY_SECURE_USB_DL_DISABLED (6041), MSP ERROE CODE: 0X00.

I have a log that I will attempt to attach to this post.

I disconnected and attempted to boot into recovery. Good news: it no longer seems to bootloop. Bad news: it never gets past the Acer glimmering load screen. Then it shut itself off, and when I attempt to turn it on, recovery or normal, it just vibrates and quickly flashes a blank screen. Then nothing.

Will update when I have something new.
[Android General] peter6:
A3-20 FHD Formated

Hello,

Firmware: "Acer_AV0K0_A3-A20FHD_1.023.00_WW_GEN1

Flash Tool: "SP_Flash_Tool_exe_Windows_v5.1352.01

when i use the v.5.1352.01 Flash Tool I´ll get the Brom Error 2005 in the Rework-Secro Scatter File and also for the other scatter file. I´m using the Drivers: "MediaTek USB Port" and "MTK USB Port". form the Driver Folder "SP_Drivers_v1.4". The Flash Tool starts with no red bar and shows no detected Drivers.

When i use the newst Version of Flash Tool I´ll have a little sucess with the normal scatter file. When I´m starting a download, the red bar completes and the next purple bar of the bootloader also completes. The next bar ist the "Download Flash" bar and here I´ll get a Brom Error Nr. 4008. The newest Version of the Flash Tool detects a MediaTek Driver: "MediaTek DA USB VCOM (Android) (Com19).

Under the newest Version of the Flash Tool the Memory Test works with the normal scatter file. It shows an Error under NAND Flash: "Error: Nand Flash was not detected!". All the other tests gets an sucess. Perhaps it is a Problem with the Driver.

Any Solutions ?

Peter
[Android General] peter6:
A3-A20 FHD Formatted

Or are there other ways to flash the tablet ?
[Android General] Shreps:
If you have access to the stock recovery, you can flash a ZIP firmware

Envoyé de mon One+
[Android General] peter6:
A3-A20 FHD Formatted

Hello,

i formatted my tablet with the flash tool a month ago. I only can connect the tablet over the pc.

I tryed 2 different PC with differnet OS. The "SP_Flash_Tool_exe_Windows_v5.1352.01" does not start a Progress or loads a Driver.

The Memory Test in a new SPFT Version Shows following Error:

The Firmware Flash in a new SPFT Version Looks like this:
[Android General] farbiond:
messed up b1-750

ok so i deleted something i shouldn't have .. what rom can i use to get it back to basic ..

can't seem to find 750 stock.
[Android General] nikagl:
Try this:

SDs_Acer_AV0K0_B1-750_RV03RC02_WW_GEN1

Drop the zip onto an sdcard and boot into recovery to install the zip.
[Android General] nikagl:
Hi [MENTION=5052427]davidam091[/MENTION],

I never had to use reset, that just came from a generic guide that I found a while ago. You should really try to follow the Flash Full ROM guide for A1-81x, I have gone through all steps again and it should be ok. The only thing missing seems to be two things:

1. For the Raw Data section, please use the secuoff.img from this archive . I am not sure whether the sro-unlock-sign.img file from the firmware works

2. The SEC_RO file is missing, which is because the firmware for A1-810 has two files for it: sro-lock-sign.img and sro-unlock-sign.img. Try it with the unlock one and if it doesn't work, use the lock version

I don't have this device so I am simply not sure either, it looks like there's a mixup in several of the files because the original guides got deleted...

Don't use any custom recoveries, first try to flash the stock ROM (firmware for A1-810 above). If you get that installed (you could also try without the Write Data step) and it works, next step is to install a custom recovery to gain root if you want that.

Regards,

Nika.
[Android General] hylemn:
........

hi, i have a very big prob. my acer iconia a1-810 is stuck in bootloop. everytime i open it, it just show its "acer logo" then the android will pop showing its erasing.. so i tried to wipe data/factory reset but it doest work, then i tried to apply update from external but most .zip or .rar wont work, and i cant use SPFT mode coz it wont show the download mode. i cant even find its android system recovery. Acer_Av0k0_A1-810_1.055.00_WW_GEN1

please help me..
[Android General] nikagl:
See one post up, please try that firmware. Note that it will wipe your device... (factory defaults)
[Android General] farbiond:
worked .. but

ok this worked the tablet is working better but i can't move apps to sd .. any idea it just give me a failed moving message..
[Android General] nikagl:
That's a feature that's supposed to be part of the ROM (with the downloaded apps, not the stock apps). If it's not available you may need third party tools, but many of those may need root?
[Android General] hylemn:
i think your post is for b1-750???
[Android General] nikagl:
Doh... one post up from your previous post, not mine! Here:

http://xdaforums.com/showpost.php?p=63635751&postcount=862
[Android General] Tarek Laban:
acer b1 810

plzzzz i dont find astock frimware for acer b1_810 i need alink direct to dowenload it :(:(:(
[Android General] nikagl:
Do you want an Fastboot or Recovery firmware?

Fastboot: Acer_AV0K0_B1-810_RV02RC05_WW_GEN1.zip

Recovery: SDs_Acer_AV0K0_B1-810_RV02RC04_WW_GEN1.zip
[Android General] hylemn:
not turning off

hi again, i cant do that instruction because my a1-81x is in a boot loop were it stay in RECOVERY MODE,

when ever i try to flash, "using apply update from external storage" installation always end up being aborted.

if i reboot the tab, it will show the android "erasing" then it will get back to recovery mode.

if i wipe data/factory reset, it will say "data wipe complete"

then the whole thing returns to reboot-erase-recovery

Acer_AV052_A1-810_RV31RC03_WW_GEN1_user_signed

OS_Acer_AV052.RV31RC03.AV0K0.RV0BRC01.WW.GEN1_A42J_A

OS_Acer_AV052.RV26RC06.PA.CUS1_A42J_A

SDs_Acer_A1-810_AV052.RV00RC00_AV052.RV21RC02_WW_GEN1

SDs_Acer_AV0K0_A1-810_RV0HRC03_WW_GEN1

SDs_Acer_AV052_A1-810_RV31RC03_WW_GEN1

i cant use SPFT. i tried removing the battery from the back to turn off the tab but whenever I connect the turned off tab to the computer, it always turn back on so the process using SPFT stops.
[Android General] nikagl:
1. Turn off tab before connecting

2. Click Download in SPFT

3. Connect tab with USB

It should then turn on and start the flash process. If it goes into recovery instead, try using a different cable, USB port or even laptop!

Regards,

Nika.