I am starting this thread to hopefully encourage discussion on the Lenovo A2107A-F tablet variant.
I am aware there is an existing thread on the A2107 here:
http://forum.xda-developers.com/showthread.php?t=1982334
but that thread is concentrating on the A-H (dual sim + wifi) variant which is somewhat different from the A-F (wifi only).
So far I have not found any custom rom development, which is disappointing as the stock rom leaves a lot to be desired IMHO. While the current OTA update is fine for web surfing, reading emails etc, HD video playback (particularly YouTube HD) is very poor. Also the recent OTA update forces an optimization of apps on bootup which leads to long boot times
You can root and install CWM by following steps 1-5 from the 1st post here:
http://forum.xda-developers.com/showthread.php?t=2044496
Note that "-Update 3-" mentioned in the post does not appear to work for the A-F model!
So, has anybody any leads on possible development on this tab?
Any tips on improving performance?
My first tip:
If after installing CWM you cannot get to the CWM recovery screen after powering down the device, look for for the file "/system/reboot-from-recovery.p". If it's there, either delete it or move it to some other place. This file restores the default recovery on a system reboot.
I got bitten by this a couple of times
Thanks for starting a separate thread for the A2107A-F. I'm new to Android devices and just got this one two weeks ago. I'd like to get rid of several of the apps that I have no use for and from what I understand that means I have to root it. I got lost in the details of the other thread, but I tried reading all of it. I'm on Vista and somewhere along the line I installed one of the suggested ADB drivers via PDAnet. Device Manager is showing Android Phone and under that Android ADB Interface. I wasn't sure if that matched closely enough with the step-by-step threads since I don't really think of the device as a phone, so I've been holding off on going further. I've tried using a few other drivers that were suggested in the large thread and some other threads, but Vista always tells me the current driver is the most up-to-date one.
Do you know if it's okay for it to say Android Phone rather than something else?
Thanks. I've got some other questions about the specifics of some of the other steps, but this is probably enough to get started.
My apologies in advance if my posts are too long and my questions are too basic for these forums. Feel free to point me somewhere else based on what I'm asking for. I'd honestly appreciate any leads towards my goal of getting rid of the bloat on this device and making it more responsive. (Wow! The portrait to landscape lag is really bugging me now after reading around here).
Anyway, my primary purpose is to remove the seemingly unneeded programs, services and widgets that come with the tablet. Maybe I'm just ignorant about these things, but at this time things like messaging (IMO), mapping, and some of the other default features are of no use to me. They seem to be eating up a lot of resources. I can kill some of the services I think they are associated with, but they keep popping back up.
I did watch the "noob" video (color me a tiny ant to be squashed) and did try to search for an answer to get me even started. I've read the huge main A2107A thread (80+ pages) and tried three of the suggested ADB drivers with my Vista 32 setup for my A2107A-F. The only one that even seemed to connect was ADPnet and it showed the tablet as a Android Phone. Maybe I'm just too paranoid, but after the multiple "brick" posts I'd like to make sure I'm on the right path before trying to "root" the device which appears to be the first step in removing all the extra stuff Lenovo added.
Not that it matters, but I've had the tablet for almost two weeks now and my favorite things are Slacker Radio, Scrabble, Roll It and Zen pinball. I do play Words with Friends with my wife, but I don't like it since some of the words they allow are not valid in Scrabble (which I used to play as an expert competitively face-to-face).
If you are so inclined, feel free to PM me for a Scrabble game. I promise I will not use anything other than my brain and the built in dictionary to make my plays. (I'm a bit rusty since I gave up competitive Scrabble in 2006).
So, long story short... Thanks in advance for any and all advice you can give on slimming down the Lenovo A2107A-F. And if you want an honest Scrabble challenge feel free to PM me.
As far as checking if your drivers are installed properly I would open a dos (command) prompt in window and from within the window change to the directory where you have the 4.03root files. From the command prompt type 'abd.exe shell' and you should see something like "[email protected]:/ $". If you don't see this then you will not be able to root! You need to make that USB debugging is turned on on your device you have an entry in the device manager for ADB Interface (expand on the device which you have showing up).
I am no expert, and I struggled with this on my first go also
Once rooted you can then install Titanium Backup from the play store and use it to get rid of the bloatware! Proceed with caution however as it is possible to remove critical system apps!
degsie said:
As far as checking if your drivers are installed properly I would open a dos (command) prompt in window and from within the window change to the directory where you have the 4.03root files. From the command prompt type 'abd.exe shell' and you should see something like "[email protected]:/ $". If you don't see this then you will not be able to root!
Click to expand...
Click to collapse
Thanks! That's the type of test suggestion I was looking for to make sure I was on the right path with the driver.
So has anyone tried creating a rom for this tab yet? I've been doing some research into porting another rom to work on the A2107A-F, but want to make sure there isn't one already.
I just received a notification of a new firmware update for the A2107A-F. This would be the second available update.
Has anyone else gotten this and taken the plunge yet? I'm curious if this is possibly Jellybean, as some of the larger screen IdeaTab models run this.
Sent from my IdeaTab A2107A-F using xda app-developers app
ssenemosewa said:
I just received a notification of a new firmware update for the A2107A-F. This would be the second available update.
Has anyone else gotten this and taken the plunge yet? I'm curious if this is possibly Jellybean, as some of the larger screen IdeaTab models run this.
Sent from my IdeaTab A2107A-F using xda app-developers app
Click to expand...
Click to collapse
DON'T DO THE UPDATE!!! I lost root access and now I don't know whether or not if I try to re-root if its gonna brick my tablet!
Kevin147 said:
DON'T DO THE UPDATE!!! I lost root access and now I don't know whether or not if I try to re-root if its gonna brick my tablet!
Click to expand...
Click to collapse
I lost root after applying the first update a while back. That's typical when updating. Afterward, I was able to re-root mine again using the same procedure as before. All was well. So, don't panic...yet.
Can you report on what other changes the update made? Is it Jellybean? Or maybe ICS 4.04?
ssenemosewa said:
I lost root after applying the first update a while back. That's typical when updating. Afterward, I was able to re-root mine again using the same procedure as before. All was well. So, don't panic...yet.
Can you report on what other changes the update made? Is it Jellybean? Or maybe ICS 4.04?
Click to expand...
Click to collapse
Well, I just re-rooted my tablet and everything was successful! There is absolutely no difference AT ALL with that so called "update".
Kevin147 said:
Well, I just re-rooted my tablet and everything was successful! There is absolutely no difference AT ALL with that so called "update".
Click to expand...
Click to collapse
Although I have my A2107A rooted and tweaked to my satisfaction, there are a few lingering issues that I'd hoped an update would correct:
1) The neutered Bluetooth stack. The tablet is supposed to work with Bluetooth keyboards, mice, etc. It doesn't. Although I've gotten it to talk to an external GPS module, other Bluetooth data connections simply will not work. Oh, and Bluetooth audio? Forget about it!
2) Some settings that are present in stock ICS builds are just omitted in this one. As an example, the ability to specify a default TTS voice. It's present under settings in my wife's tablet and every other ICS build I've ever encountered. Not this one!
Sent from my IdeaTab A2107A-F using xda app-developers app
Kevin147 said:
DON'T DO THE UPDATE!!! I lost root access and now I don't know whether or not if I try to re-root if its gonna brick my tablet!
Click to expand...
Click to collapse
I was rooted too, lost root access (only with some apps!) after the 130221 update Feb 28. I'll try the same root procedure as before to see if I can get it back. Glad to see a thread on the popular US version A2107A-F. Maybe someone will port Jelly Bean to this tablet! Doesn't appear Lenovo wants to do it...
Rob
I cannot get this 'update' to install after downloading. The tablet reboots to CWM during the install (I am rooted with CWM installed) and when I attempt to manually select the update.zip from /sdcard/googleota/ I get on error (status 7). In desperation I re-loaded the stock rom that I found on another thread and when the tablet attempts to update I get a "assert failed apply_patch_check( /system/app/applicationsprovider.apk)" error Anybody any ideas?
degsie said:
I cannot get this 'update' to install after downloading. The tablet reboots to CWM during the install (I am rooted with CWM installed) and when I attempt to manually select the update.zip from /sdcard/googleota/ I get on error (status 7). In desperation I re-loaded the stock rom that I found on another thread and when the tablet attempts to update I get a "assert failed apply_patch_check( /system/app/applicationsprovider.apk)" error Anybody any ideas?
Click to expand...
Click to collapse
I'm in exactly the same boat as you. I'm getting the same exact error. except that I do not have CWM installed (I am rooted though). Perhaps there's a problem with the update.zip?
Something odd that I noticed however: After the tablet reboots into recovery mode, the update fails, and I go to browse for the update.zip, the sdcard/googleota directory is missing (along with everything that follows it alphabetically). They reappear upon normal boot. I've tried copying it to a directory closer to the beginning of the alphabet and it does show up while in recovery mode. But it still will not install.
Maybe I somehow do not have the available space to perform the update? Is that possible? I show plenty of available space on both sdcards. Could we somehow be below a certain ROM space threshold necessary for an update?
I think in my case because I loaded a 'stock' rom I got from another thread, this rom is failing a verification test the update is doing before install. I do not know how to get around this! I'm continuing my search, but I am not so confident this will be resolved easily...
degsie said:
I think in my case because I loaded a 'stock' rom I got from another thread, this rom is failing a verification test the update is doing before install. I do not know how to get around this! I'm continuing my search, but I am not so confident this will be resolved easily...
Click to expand...
Click to collapse
Well, I am running a stock rom. I am unwilling to "mess with success" until there's a 100% reproducible way of recovering if it fails. And, so far, everything I've read in the other A2107A thread has been hit or miss for the A2107A-F people.
Anyway, If the update is performing a verification test, then it my "virgin stock ROM" should certainly pass it. The only thing that I did is to root it. Hmmm...could the update be testing for that and refusing to install if it detects a rooted device? I would tend to doubt that, since the previous ota update went just fine. I lost root in the process but easily reapplied it afterward.
Thoughts?
Interestingly, I flashed the A2107A-F_S483_121115 rom (again, found in another thread) as I was having verification problems with the OTA update just released from lenovo which was available from the A2107A-F_S484_121211 flashed rom. While the S483_121115 rom appears to be older, I no longer get the option to update via OTA as the tablet is telling me that my s/w is up to date! Go figure.
It's really too bad this device hasn't taken off. If I actually knew how to dev then I would start developng ROMs for it. I'm enjoying it now that I have root and got rid of bloat.
Hey guys. Just wanted to say if someone can send me a stock rom and be willing to test, I'll try to do up a good rom for the -f models. I'd use mine for the stock rom, but I've edited a lot of the system, so no go there. If you have the stock rom or want to be a tester, let me know.
I've been searching for info specifically for rooting/CWM'ing/ROM'ing this phone for a couple of weeks now and this device seems to be the bastard child of the Android world. If I owned a ZTE Blade I would be fine already. I know that help for this device exists somewhere, but using the XDA search tool doesn't pull up anything. I've searched for "Supreme", "Vital", "Quantum", ZTE in general, etc, etc, and the only thing that comes up is the LG Quantum which is obviously no help at all. And it seems that none of the other Android "help" sites have any better luck with specific information for this device (it's always a "this works for most devices, but your mileage may vary" kind of thing).
Basically I broke my phone from Virgin Mobile, bought a cheap used one in good condition off of eBay, but unfortunately the new one is tied to Sprint. Doing an ADB backup/restore from one device to the other does not copy over any of the carrier information so that was no help. It appears that this info would be copied over with a Nandriod backup, but I can't do this until I install CWM. I can't use ROM Manager to flash in a CWM image because this is not a "supported" device. I've tried using fastboot but it just waits forever for the device to connect whether I have the ZTE or Google USB drivers installed. I've tried flash_image but it throws an error saying the recovery partition was not found. I've tried just about every solution I can find any hint of anywhere online and I'm at the end of my rope. The only good news is that I was at least able to root my device using KingRoot! It's everything after that which has been the problem... I'm hoping somebody here can point out a link to a GOOD source for exactly how to at least load CWM for this specific device so I can get Nandroid going. Ordinarily I wouldn't mind experimenting with building this from source myself, and I'm sorry for taking the lazy approach and asking for somebody else to do the grunt work, but I work 12-16 hours a day and just don't have the brainpower available to deal with this right now. I just want my phone back!
As a second item, I would very much like at some point to play with loading Lollipop on this device. I've found a link which on the surface seems to have good info, but then when you try to download the image they hold the data hostage and expect you to "complete these dozen offers". NO, I'm not going to give them all of my personal info, and I'm also not going to jump through their bs marketing hoops. But anyway, this is entirely secondary to getting my replacement phone up and running. The link to this info I found is:
cwm-twrp-recovery.org/2015/03/zte-vital-n9810-5511.html
Copious thanks in advance for helping me to keep my sanity!
Hi
Thanks for writing to us at XDA Assist. I can't find anything relating to your question on XDA, please ask your question here:
Android Q&A, Help & Troubleshooting
If you wish to request a device forum for this phone you can do so in this thread:
*** New Device Forum Requests ***
Good luck!
No response in two days, thread closed.
Upon turning on, it displays: EFI Hard Drive has been blocked by the current security policy.
No one seems to know how to solve this. I was trying to flash it by downgrading it to a previous android OS so apps can get SD card access, (I hate kitkat 4.4)
but i'm afraid I applied the wrong ROM.
Trying out Fastboot was helpless, at least the way I was trying. Commands use to be returned with "access denied".
So the hard drive,as the system calls it, is blocked. I cracked it open, hoping to find a "hard drive" but saw a bunch of
chips instead.
I am hopeless.
If you can help or have an idea (not to contact Acer Support, I've got a lot of that), this is my email: [email protected]
Thanks in advanced.
Obed Paulino.
XDA Visitor said:
Upon turning on, it displays: EFI Hard Drive has been blocked by the current security policy.
No one seems to know how to solve this. I was trying to flash it by downgrading it to a previous android OS so apps can get SD card access, (I hate kitkat 4.4)
but i'm afraid I applied the wrong ROM.
Trying out Fastboot was helpless, at least the way I was trying. Commands use to be returned with "access denied".
So the hard drive,as the system calls it, is blocked. I cracked it open, hoping to find a "hard drive" but saw a bunch of
chips instead.
I am hopeless.
If you can help or have an idea (not to contact Acer Support, I've got a lot of that), this is my email: [email protected]
Thanks in advanced.
Obed Paulino.
Click to expand...
Click to collapse
Hi, thanks for using XDA assist!
First, please create an account so you can post in other forums.
Here are several threads specific to your device:
http://forum.xda-developers.com/t/iconia-tab-8
Please look through them to see if a solution already exists for your issue.
Otherwise, after creating your account, you can post your question here:
http://forum.xda-developers.com/showthread.php?t=2257421
Good luck!
Hello
First of all, let me explain the situation:
My phone is the Oneplus One, currently with no OS, the reason being - because i wanted to re-root my phone after the Oneplus updated (this update was a while ago) either way many problems occurred and i figured the easiest way to re-root my device is to simply wipe it, and try again on a clean slate.
I attempted to wipe my phone, but did it the complete wrong way. Instead of using the OS's wiping strategy, i may of used the recovery's one instead, doing so i clean swooped the OS right off my phone.
At the moment, the phone has no OS installed - nor is the phone rooted. The phone isn't capable of passing files over through usb debugging because the computer doesn't recognise it no more. (It did have usb debugging turn't on). Of course i need to reinstall an OS on the phone. The TWRP recovery is working fine. But i do not know how to do it. I looked up things such as mounting, didn't really understand the vague explanations given by the helpers of this forum (i am slow haha :silly. If someone is able to point me in the right direction in how to simply put an OS back into the phone some how i would be grateful.
I did read up on one post that suggested making a system.img placing the OS inside and flashing it over using fastboot mode. Which brings me to the question. Is it possible to use command to install an OS on my Oneplus whilst in fastboot mode
RazorCJ123 said:
Hello
First of all, let me explain the situation:
My phone is the Oneplus One, currently with no OS, the reason being - because i wanted to re-root my phone after the Oneplus updated (this update was a while ago) either way many problems occurred and i figured the easiest way to re-root my device is to simply wipe it, and try again on a clean slate.
I attempted to wipe my phone, but did it the complete wrong way. Instead of using the OS's wiping strategy, i may of used the recovery's one instead, doing so i clean swooped the OS right off my phone.
At the moment, the phone has no OS installed - nor is the phone rooted. The phone isn't capable of passing files over through usb debugging because the computer doesn't recognise it no more. (It did have usb debugging turn't on). Of course i need to reinstall an OS on the phone. The TWRP recovery is working fine. But i do not know how to do it. I looked up things such as mounting, didn't really understand the vague explanations given by the helpers of this forum (i am slow haha :silly. If someone is able to point me in the right direction in how to simply put an OS back into the phone some how i would be grateful.
I did read up on one post that suggested making a system.img placing the OS inside and flashing it over using fastboot mode. Which brings me to the question. Is it possible to use command to install an OS on my Oneplus whilst in fastboot mode
Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
Sorry to hear about your trouble but fortunately there is an XDA area dedicated to the OnePlus One at http://forum.xda-developers.com/oneplus-one . I suggest you post your question with all relevant details in the friendly Q&A forum there at http://forum.xda-developers.com/oneplus-one/help where the experts familiar with your device will be best able to guide you.
Good Luck!
Hi,
I recently bought an Umi Iron and believe I have accidentally managed to soft brick it (based on what ive found on google and the forums here) I need a way to get it working again and have some ROMS (2 official ones) which are compatible for the device. The device will boot into recovery and allows restoration from an SD card, ABD Push or the cache. The cache is empty and although i have searched for how to do it from an SD card i have found no information (I've tried putting the .zip files onto the device and installing those but the device says "installation aborted"). I have a SDK which I am attempting t learn to use in order to fix the device. Any information about how to use the program/get the new ROM flashed via fastboot would be much appreciated as I have very little knowledge of what I am doing as I have never attempted to root or flash a phone. The phone comes pre rooted from the factory (I dont know if this info is relevant but I'm working on the assumption the more info i can give the better). The device entered this startup loop when i removed an app which i had accidentally installed as a system file while trying to use an app to move it to my SD card. Any information and help is much appreciated
Hi,
I can't find anything relevant on XDA for your device and issue, but perhaps the members in this thread can help..
http://forum.xda-developers.com/android/general/umi-iron-unibody-alloy-dual-led-t3127905
Good luck!
Hi Darth,
Many thanks for your reply, since i posted this thread I have done some further research and narrowed the problem down further. The device runs android 5.1 and there is a setting in the developer settings which locks the OEM bootlocker. This is the issue i am having. Because the device has this option checked, I cannot unlock the bootloader to install a custom rom to rectify the issue as i cannot turn the device on to access these settings. I have seen many people have had this problem with devices and android 5.1 including Nexus and HTC phones. I have been unable to find a fix for this issue though so if you know of any articles which may point me in the direction that would be most helpful
Thanks again
I would say the best place to ask about that is in the thread I linked above. But if that's not helpful, you could ask here,
http://forum.xda-developers.com/showthread.php?t=2257421
Every device is different as far as if or how the bootloader can be unlocked. So you really need an answer specific to your device.
Hope it works out for you!