yashsingh1/xdaforums huggingface dataset:
[Android General] makbro:
You can use the method described in the thread below (for back-up only, just follow step 1 and 2), I have personally checked it and it's back-up is reliable which can be flashed using Flash Tool... But remember, make back up using this method on stock device, backing up the modded ROM won't help you to recover the stock ROM, of course you know this but I mentioned it for the sake of completeness :)

http://xdaforums.com/showthread.php?t=2044496

The credit for collecting and posting a "how to" the above method thread goes to "csns"...Thanx again Bro !!!

---------- Post added at 06:36 PM ---------- Previous post was at 06:26 PM ----------

It normally takes between 12-15 mins (that's in my case)...And you can flash a ROM with stable calling feature or any other ROM for that matter without rooting it by using Flash Tool based installation...Of course, the ROMs available for this device (Chinese, Russian or pemergency) will ultimately have root once you install them, it's built it :) In any case DON"T flash any other ROM till you have a complete back-up either using MTK Droid tools or step 1 and 2 of this thread :-

http://xdaforums.com/showthread.php?t=2044496

Credit to "csns" :)

---------- Post added at 06:46 PM ---------- Previous post was at 06:36 PM ----------

It's using the "MTK 6575" chipset, so basically any ROM designed for this chipset can be ported to A2107A with minor modifications described here :-

http://apcmag.com/port-roms-to-your-android-device.htm

Of course I am not suggesting that you don't know this already, just mentioning it for completeness !!!

Credit to Simon Chester for the porting tutorial !!!

---------- Post added at 07:44 PM ---------- Previous post was at 06:46 PM ----------

Good news !!!

I have completed the stock ROM flash using Flash Tool :victory:

I generated the legitimate scatter file using my "Firmware.info" file that was backed up in stock ROM (step 2 of your tutorial in the other thread)...I used " MT657x ROM Studio" tool as described in this thread ( http:// bm-smartphone-reviews.blogspot.pt/ 2012/ 04/ creating-rom-dump-of-your-mt65x3-device. html ) to extract "MT6575_Android_scatter_emmc.txt" from "Firmware.info"...All the files used by Flash tool are already there in the back up created using "Gscript Lite"

Credit again goes to you csns...It wouldn't have been possible if I didn't back up my stock with the method you described :)
[Android General] hapeeusa:
Lenovo A2107-F wpa_supplicant for ad hoc wifi support

All,

First, I think this is an awesome device. I saw the A2107A in Tokyo first with the dual sim option, then also noted a non-sim wifi only version for an even lower price.

$149 for a ICS 7" tablet with SD expansion and high res screen is a great deal. I got the A2107-F (wifi only) and bought a 32GB mini-SD expansion :).

Now I use a Nokia phone with Joikuspot a lot for on the road wifi. So using the instructions here I used MTK Droid Tools to root the device and it was easy. Just had to connect it, wait for it to reboot a few times and done. Thanks!

Now I have been trying to find the right wpa_supplicant for ICS 4.03 and this device. I don't know much about android but have UNIX experience.

I have tried a number of different wpa_supplicant replacements (if you try this, make sure to back up your original!)

I have tried one for SGS2 and one for Nexus, both ended up disabling my wifi completely :(. But I was able to restore it with my backed up original file :).

The best results I have had so far is with a file I got from a Chinese website:(argh cannot post link as I a new to this forum)

It allows for WIFI to work and I can actually detect my ad hoc network, however it seems unable to connect to it. Sooo close....

If anyone has suggestions, help or pointers on how to enable ad hoc wifi capability, I would really appreciate it.

Thanks!
[Android General] makbro:
Working WiFi Adhoc Network !!!

1. Replace your file "/system/bin/wpa_supplicant" with the attached one.

2. Download all files at the link : http://apads.com.au/downloads/adhocable/

3. Copy the 3 files: "wpa_supplicant.conf", "wpa_supplicant.conf.adhoc" and "wpa_supplicant.conf.normal" to "/system/etc/wifi" folder (replace existing "wpa_supplicant.conf").

4. Install AdhocAble.apk.

5. Now, start up adhoc wifi tethering on your phone and set the adhoc SSID to: adhocable with NO password.

6. Remember that you have to Turn wifi off and on every time you switch modes !!!

Enjoy :)

Credit :- http://forum.archosfans.com/viewtopic.php?t=45943&p=322417
[Android General] hapeeusa:
almost...

Thanks! almost got it to work ... (lol famous words)

It seems the apk just replaces the two text files. I get an error message that it cannot open the wpa_supplicant.conf.adhoc file. What permissions should I set? Can the apk invoke superuser rights?

Also there are files in /data/misc/wifi and in /etc/wifi/. These look like the same files. Why are they in two locations?

Thanks!
[Android General] makbro:
These are not text files...I hope you didn't open them with notepad or wordpad in windows, if you did or even set file association, they would be corrupted...We have to use notepad++ for these files...I am sure you knew this already, I am just making sure you didn't do this...

Put the "wpa_supplicant" file that I attached in my previous reply under "/data/system" as well...

The apk doesn't require SU rights, it runs like any normal apk...Try and set your superuser automatic response as "Allow" and rerun to be safe...

Don't worry about the duplicate locations, once the apk is installed and run, they are copied to /data...

Hope this helps :)
[Android General] csns:
And for some reason I am having a tough time with this procedure.

I generated scatter loading file but when I use the preloader.img from my original backup I get stuck just after loading it to the tablet - red bar goes to 100%, I hear the device disconnected and reconnected to my PC but it stops there.

When I try "preloader_lenovo75_a2_ics.bin" from the Chinese ROM the process goes OK to the end but the tablet doesn't boot.

So could you please let me know which files from the original backup did you select in the SP Flash Tool? Perhaps I'm missing something simple.

Thank you.
[Android General] makbro:
I think when you made your Gscript Lite back-up, your bootloader was locked right ??? That is why you don't have a correct "preloader.img"...

I am not sure why the preloader.bin from Chinese stock ROM is not working, it should !!! Try the one in the SP_Foxtrot_v100...All of these are the same size so the mapping in scatter file doesn't change...

I used my original "preloader.img" and "dsp_bl.img" for flashing !!!

The complete list of files I used is the following:-

preloader.img

dsp_bl.img

mbr.img

ebr1.img

uboot.img

boot.img

recovery.img

secro.img

logo.img

system.img

cache.img

data.img

Hope this helps
[Android General] johnmilthon:
back up

hey one more cuestion, can i do buck up from the tablet of my father (stock rom) with mktdroid, then create the flash tools, and then flash mine, to have the stock rom in my tablet?, can i use mtkdriod to do that? or is necesary to do with gsscript because i have the stock rom buck up i created with gsscript and i got the stacert file from mkt rom studio, but i get an error when trying to fhash with the scather from mkt rom studio, do i have to do something more, sorry for my english i'm from peru :D thanks for all
[Android General] makbro:
Scatter file from MTK ROM Studio is in new format so you need to use Flash Tool version 3.1216.02 or later version...You can use the back-up created from MTK Droid Tools also, I think you would only need "preloader" from Gscript Lite cause MTK backs up preloader and dsp together, but I am not sure...Theoretically, you can do it, practically, I have used the Gscript Lite back-up with the scatter file from MTK ROM Studio and Flash Tool version 3.1216.02.

Best of luck !!!
[Android General] johnmilthon:
tutorial please

please, i have de buck up from gsscript, my tablet with chinesse rom, the tablet from my father with stock rom, SP_Flash_Tool_v3.1224.01, MTKdroidTools_229, i didn't get the correct scather, i get it from mkt studio, but the preloader and dsp, gets error, i put the preloader and dps, img, but i think i'm doing somthing wrong, please, can you make a tutorial?, or just describe here, what you did please?

---------- Post added at 06:59 PM ---------- Previous post was at 06:50 PM ----------

i'm flashing my original stock rom bucked up with gscript and preloader and dps chinese, lets see what happenss
[Android General] makbro:
Hmm...You have the same problem, your bootloader was locked when you made back-up so your "preloader.img" and "dsp_bl.img" are not correct...You can use these two files from the Chinese Stock Rom folder or the SP_Foxtrot_v100 folder, it should work...The rest of the files which do not load automatically, you have to click on them on the left side of the lower section of Flash tool which will open up the explorer window from which you can choose them individually...

csns is also facing the same problem, he may also comment please when he solves this problem...I didn't face it since my "preloader.img" and "dsp_bl.img" worked !!!
[Android General] johnmilthon:
what version of tablet do you have, could you upload you preloader and spd files?, my tablet turns on, but i get a message black screen with lots red squared and it says selet system languague

---------- Post added at 07:29 PM ---------- Previous post was at 07:19 PM ----------

i don't have the tablet of my father rigth now, i will have it on sunday, but,

i have made a buck up from my chinesse version, and i didnt get the preloader file, i chose the chinesse version, and it restore the whole rom, i think i will do it with the tablet of my father to get stock rom

any suggestion about using preloader and sp files, because it doesnt work with chinesse and russian version

---------- Post added at 07:47 PM ---------- Previous post was at 07:29 PM ----------

where can i get foxtro rom? i have download it but just update file,

well, i have foxtro instaled it's better then the stock rom, i can make calls and other things, but wcdma doesn't work, here in peru we use something like hpdsa or somthing like that, do you now how to fix it? if this works i won't get buck to the stock rom if i have 3g or wmcda in which the internet is so faster, i would keep this version :/
[Android General] weedolo9y:
Will the instructions on first page work for the a-f version of this tablet??? Anyone??? I see it works for the a-h
[Android General] johnmilthon:
does your tablet is only wifi?, because if it's another version i don't recomended you to update, let it with stock rom
[Android General] fanwashere:
Lenovo A2107A-F stuck at splash screen!

Not to hijack your thread, but I have exactly the same tablet and I just got it today, and might have broken it already.

Here's the series of unfortunate events:

1. I rooted it and began using TitaniumBackup to delete some of the bloatware apps on it. I worked fine until...

2. I rebooted it and it got stuck at "Android is upgrading... Starting applications..." In response, I...

3. Used a Windows program to put the tablet into recovery mode, where I wiped it, and deleted the caches.

4. When I tried to boot it up, it was stuck at Lenovo splash screen, after the animation (just the still Lenovo logo).

And it's been this way for some three hours. I am definitely a noob on this, but here is my theory on it:

1. I probably deleted a partition on it that was necessary for booting into Android, and because of this...

2. The tablet is stuck on the bootloader, unable to find and start up Android ICS.

3. And thus I have no access to recovery mode, and have no chance at restoring/reflashing anything.

4. There's no USB connection as well; it charges through USB but does not show up as anything on my laptop.

I researched and this is either bricked or in a boot loop. I have no clue what to do for either case. I'm currently waiting for the battery to die so that I can PERHAPS boot it into recovery mode when it turns off (none of the buttons are responding to any combination of buttons being held down for upwards of 30 seconds so far).

Experts, PLEASE HELP.
[Android General] johnmilthon:
if you have a2107a-h 16 gb i can help you to install a china version because, there is not a stock rom, or nobody has create it, the same thing happened to me and now i hace a rusian version but wcdma is not working, only GSM and it's so low, i'm waiting for my father to bring his tablet to make a stock rom for this tablet that will happen on sunday, but if you want i can help you with china version
[Android General] fanwashere:
Thanks for the reply.

If you have a Chinese version of the ROM for the tablet I have (there's nothing cellular, Wifi only), that would be perfect cause my parents would prefer that over English. But I'm wondering if you feel like there is a way to get it out of the boot loop/brick?
[Android General] junooni:
Totally unrelated to the ROM flashing topic but posting here since this is the only active topic for our Lenovos

For some reason, my wallpapers have started getting cut only in 'landscape' orientation. Didn't used to happen earlier and I don't recall doing anything but may have been due to an experiment with LCD density changer that i tried long ago. its back to the default 160 now but only in landscape, wallpapers get cut vertically at half the screen.

Live wallpapers are not affected at all. I have tried different launchers with same result.

can anyone figure out the reason and suggest a fix?
[Android General] makbro:
I have the A2107A-H (Wifi + 3G) 4 GB version...I installed the 16GB ROM (Chinese, Foxtrot and pemergency) and they ran without any problem except that they showed 16 GB storage under the USB Storage in Settings, which was obviously incorrect...

I can upload my preloader.img and dsp_bl is you also have a 4 GB storage version, otherwise, it may make things even worse !!!

The Foxtrot ROM is posted here :- (Post number 939)

http://4pda.ru/forum/index.php?showtopic=286687&view=findpost&p=17447493

---------- Post added at 01:19 PM ---------- Previous post was at 01:08 PM ----------

Enter Engineering Mode to correct all the parameters you tweaked and reboot, it will be corrected !!!

To enter engineering mode enter this code using any dialer app :- * # * # 3646633 # * # *
[Android General] makbro:
Your device is NOT bricked since you have the Lenovo logo, a bricked device doesn't turn on at all !!!

At the moment, you can recover your system by flashing either the Chinese ROM or the Foxtrot v100 ROM using Flash Tool...But there is a catch in there, you may have difficulties to get your stock ROM back...Also, these ROMs are for 3g+wifi models but yours is a wifi only, so you are likely to encounter problems!!!

So first, try and see if MTK Droid Tools can detect you device in the state it is in, if yes, make a full ROM dump...If it succeeds, try restoring your stock using your own ROM dump while following the procedure described in the "How to.doc" in the Chinese stock ROM folder...

Hope you recover your device !!!
[Android General] kunleski:
I've been trying to install CWM on my idea tab a2107A-H 16gb for the past 8hours, i've tried all the methods in the post, my windows 7 laptop was not installing the tablet.

I went to my xp desktop, the drivers were installed, but in the device manager the 2107Ah was shown as not installed.

I've tried all method and I'm fed up,

Can someone just give a simplified direction to new installation instead of the Hodgepodge information littering these thread and the necessary drivers to install?

Thanks in advance
[Android General] garringm:
Here you go try this to get ADB working for you. This is about as cut and dry as it gets, can't get any simpler for you without having someone else do it for you.

Here is a link to the adb driver he is referencing

http://support.lenovo.com/en_HK/downloads/detail.page?DocID=DS022366

This is the exact steps I took to install it on my Windows 7 acer laptop
[Android General] jhonnysg:
please help with a2107a-F

Greetings friends, I am in possession of a lenovo a2107a-F (WiFi only) and I'm interested to enjoy all your hadware 100%, I see no rom for this team, but I would like to enjoy the moments and fm radio this holds mt6620 chipset combo like the 3G model, someone puediera help with this?
[Android General] ichi go:
Hi everyone,

here are the files to install the stock Chinese ROM A2107A_H_S121_120525.

I must cut the ROM into 3 parts to upload it.

If you need more info, don't mind to ask !

Flash tool :

A2107 flash tool

USB driver :

USB VCOM driver

How to :

A2107 flash how to

Stock ROM :

A2107A_H_S121_120525 part 1

A2107A_H_S121_120525 part 2

A2107A_H_S121_120525 part 3

EDIT : For those interested, here is a firmware update :

update.zip

- copy the "update.zip" to /sdcard

- reboot into recovery with "adb reboot recovery"

- the update will apply automatically

For your info, here is the linkl of the original Chinese thread :

http://bbs.lenovomobile.com/forum.php?mod=viewthread&tid=56120&extra=page=1
[Android General] ichi go:
That's the ROM I flashed and everything is working as expected.

I just posted instructions so maybe you should give another try.
[Android General] pemergency:
Hmm thats interesting I download same rom, but mine has a 700MB only. It is a different version? A2107 flash tool you provided need a password for unzip. I have a SP_Flash_Tool_v3.1206.01 it is a same software?

---------- Post added at 02:43 PM ---------- Previous post was at 02:14 PM ----------

I see it is a same one, but you increase the archive size...

---------- Post added at 03:14 PM ---------- Previous post was at 02:43 PM ----------

Another try, another flashing tool and everything is working like a charm...

For someone who still have a problem, try to use a SP_MDT_src_v3.1216.02_A2012.05.22 flashing tool
[Android General] ichi go:
I uploaded a new version of the flash tool zip so you don't need a password to extract.
[Android General] pemergency:
Have you get a sim cards working? Because now i Have a invalid IMEI number
[Android General] ichi go:
I put a French SFR sim card in it and I could make phone calls without any problem.

When does the wrong IMEI message appear?
[Android General] pemergency:
Is just said "Invalid IMEI" and no numbers at all. But I found a way to create a file with two IMEI numbers (original from a box) and I uploaded to the nvram to the phone and is working now. If anyone have a same problem, just let me know I will tell you how to sort it out.

Thanks again guys

---------- Post added at 04:30 PM ---------- Previous post was at 04:20 PM ----------

For google service just install GoogleLoginService.apk and GoogleServicesFramework.apk

---------- Post added at 04:42 PM ---------- Previous post was at 04:30 PM ----------

Ok this is not working. Anyone have a idea how to setup google service including store and account syncing?
[Android General] ichi go:
To make the Google services work, I copied manually all files contained in a ICS Gapps package to the right folders. You'll also have to change their permissions to rw-r--r--

Like that, all Google services are working, including account syncing, Play store
[Android General] pemergency:
Mayby it is any chance to setup a cwm in this device?
[Android General] ichi go:
I tried to but I couldn't find the exact location of the recovery partition. When I list the partitions, I can't see it. So to connect to Google services meanwhile, I choose to copy it manually but it's very boring :)
[Android General] pemergency:
I have done same think as you, I also managed as it is possible to swap the recovery.img to cwmrecovery.img in a target_bin folder before you download firmware to the device.
[Android General] ichi go:
I also tried to replace the stock recovery with a cwm one before flashing but the flash tool gave an error. The problem is that the cwm recovery is bigger than the stock one so there is some overlapping of the partitions... I will try to make a custom one but as it will be my first one, I don't know how much time it will take ;)
[Android General] pemergency:
This device it hase a really big potencial so hopefully it someone who will prepare really nice european room. I seen lots of different rooms on chinesse forums, I even try to pay for download in "yuans" but it looks as they have completly different banking system, in results is not possible to pay for it in any way...
[Android General] mmis:
Hello everybody, could you please give a hand here, after I faced rooting problems and acore process error I sent my tablet to lenovo tech and they re-installed the original firmware, now I have two new interesting things, first and more important when I check the storage in sittings, it gives a big negative number for internal storage and it's totally full, but for USB storage it's 12GB almost all free' by the way my device is 4GB only so how come I have 12 ?!!!! The second thing that I now have FM radio app which works perfectly even without headphone which wasn't there before, so do you think that the storage issue is important or I just have to ignore it.
[Android General] ichi go:
If you can install apps as before and you don't have the "low storage space" message, i would say it doesn't matter much. Btw, mine is a 16Gb model so I have 0,98Gb of internal storage and 12,26Gb of USB storage. Are you sure your model is only a 4Gb model?

Out of curiosity, can you post a screenshot of your strage settings? Can you also post a screenshot of the "About tablet" screen?
[Android General] mmis:
I am sure that my tablet is 4GB as it is mentioned clearly on the box and I used to check storage settings regularly.

The details as below:

Internal storage:

total space -9263988736.00B

Available: 782MB

USB Storage:

Total space 12.26GB

Available: 11.98GB

Followed by SD card details

About tablet details:

Model number: IdeaTab A2107A-H

Android version: 4.0.3

Baseband version: MAUI.11AMD.W11.50.SP.V13.F1.P,2012/7/20 13:35

Build number: A2107A-H_S309
[Android General] pemergency:
It lokks as they cahnge your USB storage. Because riight now you definitelly have a 16GB :) btw. have you got a calling feature in your firmware? can you make a calls from your device?
[Android General] mmis:
No calling and wonder about the reason to restrict calling facility, and no more sd card notification at start up, but do you mean that they opened the device and change the internal USB storage? Hope not.
[Android General] mmis:
Error, unfortunately process smart.lenovo.tech stopped working stupid.lenovo.tech has been loaded instead

Those stupid people opened my device and changed the USB storage,if I knew that will happened I wouldn't send it there at all.
[Android General] pemergency:
Did you try to turn on the Data transfer over the sim card? mine is not working for some reason
[Android General] garringm:
I might have stumbled on some very useful information This may prove to be very helpful in ROM development for this device

http://www.xtreamermobile.com/en/support_software.php
[Android General] kunleski:
By pressing power and vol+

i entered lenovo factory mode

while in the device manager

cdc serial and a2107a-h are not installed,

i've tried everything and the tablet is not recognised