yashsingh1/xdaforums huggingface dataset:
[Android General] syserr:
Farhad,

Mostlkely you have a A2107A-H with a 3G GSM and a A2107A-F with WiFi. The -H can have the call feature because it is on a 3G network. Lenovo marketed at least 3 models: a -H with 2 SIMS, a -H with 1 SIM, and -F with WiFi. Unforunately, they did a bad job informing customers of these different sub-models.

To make matters more complex, the -H was marketed with Voice capabilities and without. Some places like the USA's FCC were slow to approve a tablet with Voice, or so the story goes. But the US version does have 3G Data. This -H that has Voice disabled can be hacked to enable Voice just like some of it's overseas brothers. Infact there is different firmware on the -H for, China, Europe, US, and probably Middle East, and South America. Depending on the region, the Voice/Phone app is installed and possible different kernels to enable voice stuff in hardware.

So to answer your last question: If your tablet without Calling/Voice is a A2107A-F, then you are out of luck. The -F lacks 3G hardware to let you make calls. So restoring a -H firmware on a -F tablet does not gain you Voice/Call/Phone capability.

But, if your tablet without Calling/Voice is a A2107A-H with the 3G GSM disabled, then yes. You could restore a backup of a -H that has Call capabiity on a -H without Call capability. The only problem here is, you would want to restore your nvram folder so that your IMEI (ESN) matches what came on the tablet. Also, the aftermarket/custom -H ROMs/firmware in this thread (in Makbro's post 800) seem to be better and more capable than most stock ROMs.

First thing, you need to figure out if your non-Calling tablet is a -F or -H. Easiest way is to go to:

System settings -> About tablet -> Model number

-syserr
[Android General] adm1nb3k:
Hi!. How to install CWM and where it was taken? (For Lenovo A2107A-F)
[Android General] makbro:
Hi everyone,

I'm really sorry but unfortunately, I won't be able to offer you any more help on the device owing to my work commitments...I have observed that the thread is now in good hands and other members are taking interest to resolve issues...

Please remember to press thanks button whenever you find any of my posts helpful or download any of the custom ROMs I cooked by modifying Foxtrot, Tesmart, LeWa, Chinese ROMs...

Best wishes...
[Android General] Nemo1985:
Good evening, I bought The a2107 in Germany (I live in Italy sorry for my bad english) and I was trying to install the twrp but as mistake I installed the foxtrot rom, now i'm trying to get my old stock rom back (S309) I installed the A2107A-H European Stock ROM but it's not real stock and furthermore the apkinstaller crashes just after I start it... I done some backup with the stock recovery program and I got a file called userdata_20130831_112726.backup but it doesn't seem to be a full backup!

How can I restore the full stock rom?

Thank you in advance!
[Android General] syserr:
Hello Nemo1985,

Yes, the userdata backup is only going to have your stuff as it applies to the stock rom where you did the backup. It would have all your data you created while you were running the stock rom, but not the stock itself.

Since you don't have a the original stock rom, the only way to get a completely virgin rom is from an identical device. To my knowledge no one has posted a virgin ROM for the European -H. How you would created such a thing is with SP Flash Tool "Read Back" to a file (or files if you bothered with individual partitions). Then you would "Download" (flash) it to your destination device. Then you would need to restore the nvram directory to fix the IMEI and Wifi MAC, which I guess would probably require root unless you wedged in the filesystem that is getting flashed.

The above knowledge would have saved me a bunch of pain. I botched my A2107A-F, and now ordered a refurb so I can get the virgin rom from it. I need this because the -F has different partitioning and the -F kernel apparently won't work with the -H partitioning. Or it could be some boot strapping of -H to an -F kernel. But I _know_ that if I can do a "Read Back" of the entire ROM onto the PC as "ROM_0" of 8GB/16GB then I have it all.

Also, it's noteable that SP Flash Tool is made by MediaTek. It's crude and not easy to understand but it operates at a very very low level before OS boot, so there is no need to root or have a custom recovery.
[Android General] Nemo1985:
Thanks for the answer... I had some problems with SP Flash Tool, the version commonly used with this device (V3.1224.01) was giving me the 4050 error... so I used the version v3.1316.0.150 but when I did it I problably forgot to check only the recovery voice from the program...

I might have found something useful for us in an italian forum: A2107A_H_S121_120525 it's indeed a very old version of the software but with the built in system update I might get back to a virgin s309... Do you think could this work? I don't have the tablet today because I bought it for my gf but I would be able to try that as soon she get back at home...
[Android General] shn1343:
how to enable usb on the go (otg) for lenovo a2107

hi

i have this tablet i saw most of the tablet with another brand can connect to flash memory with otg cable

how can i use this cable fo lenovo this function can not wirk in lenovo a2107 ?

thanks
[Android General] Farhad3614:
Hi dear Syserr

Thank you for your replay,

My IdeaTab Version is A2107A-H :)

What Can i do now ?
[Android General] MAGIo18:
How can I edit the output in several dialogs? Actually there are Russian symbols and I would like to have it transcribed in English
[Android General] syserr:
Since it is a -H, you have the hardware to do Voice/Calling.

I have not done this, but many people have...

You can flash a custom ROM on your -H which will have everything you need to make calls.

Steps:

1. Choose a custom ROM. (post 800, lots of opinions you can get from reading the thread)

2. Backup your original ROM or at least your /data/nvram directory or at least write down your MEID and Wifi MAC address.

3. Flash your new custom ROM.

4. Restore your nvram directory.

5. Insert GSM SIM with voice plan. (I think this is all there is too it)
[Android General] bakuLaw:
i tried Lewa ROM,

and i find it interesting,however when the unit or when the display turns off/locks,

it cant be unlock by the power switch or any of the volume keys,

is it bug from the rom?
[Android General] serc:
My IdeaTab Version is A2107A-H

and i need turkish language what can i do:(

it can be a stock rom i must not have calling function, i think the best for me is stock rom wich includes turkish language

please a tip:o
[Android General] 4henri2all:
Country code

Hello,

I have problems with my Lenovo A2107A_H.

It is rooted, has CWM recovery 6.0.1.5. and untill now it worked perfect with the LEWA rom.

Because I wanted to switch to Foxtrot, I started in recovery and installed Foxtrot,

I did the usual wipes after that en restarted the tablet.

After the big Lenovo sign I got a black screen that asks for a country code.

When I use my contry code, nothing happens for a while, then I get the message Time-out! and the tablet goes back to the country-code screen.

What is wrong and how do i solve this?

Thanks for any solution.
[Android General] mitakvd:
See here http://xdaforums.com/showpost.php?p=39219999&postcount=1280
[Android General] 4henri2all:
More problems

Please help!

My problems only became bigger.

I tried to format the Nand by using the SP/flash tool in my hurry I probebly used a wrong scatter file.

I used MT6573_Android_scatter.txt instead of MT6575_Android_scatter_emmc.txt.

The first one is the scatter file for my phone. (both files are attched)

My tablet is doing nothing any more.

No combination of buttons gave a screen or what ever.

If I try to connect the tablet to my pc it is recognized as Alcatel Single RNDIS interface but there are no drivers for this device.

And then the connection is closed and windows tries to re-open it. And this keeps going on.

Watever I try there nothing seems to work.

I hope there is still away to get it working again.
[Android General] 4henri2all:
sign of live again!!!!

Because of the fact that my pc thought the Lenovo was an Alcatel, I have moved all the necessary software mentioned above to a clean PC, that untill now had nothing to do with android.

It did not recognize my tablet. I installed the drivers from the directory and it was in installed as MTK Port.

Connecting the tablet to the PC after opening the Flash tool and formatting the NAND went okay.

So trying to install the Foxtrot-rom again.

No problems. After several minutes I got the famous green circle.

So I crossed my fingers, disconnected the tablet and pushed power, and YES, it's working again.

Somebody once wrote in this forum, these tablets cannot be bricked and I think it's so.

There is always a way to get them working again.

So don't dispair if it does not work right away.
[Android General] dentistobai:
sound is very low

hello,

my name is obai , and i am from egypt

my brother bought me a lenovo a2107a-h from ksa

i tried it for a day before connecting it to any wifi internet .. every thing worked just fine .. until i connected the tab to my wifi network , and i got notified there is an update for my software .. i did the update because it was official update .

the problem is that after the update , the sound volume of my tablet got really really low .

either songs, videos or even the lenovo logo sound when turn on the device .

i am convinced that it is a software problem ,because sound was just fine before the update.

i did a factory and cache wipes but with no positive results .

i need a solution , and if there isn't any , i need a method a sources to flush my previous working stock rom back to my tablet .

i need a source for the rom " or where to get it from"

i need a step by step instructions

i need your help

my device date :

Model number : ideatab A2107a-h

Android version : 4.0.3

baseband version : MAUI.11AMD.W11.50.SP.V13.F1.P,2012/08/29 14:3

Build number : A2107A-H_S309

please i need you advice
[Android General] Namrotek:
Hi. Pemergency rom has turkish language included. I don't know how about other roms.
[Android General] bakuLaw:
any working sound enhancements like Viper or dsp's managers?..

thanks
[Android General] dentistobai:
these apps may improve the sound by 5% only .. th sound is very low that i need to be alone in a small closed toom while holding the device to my face in order to hear a song
[Android General] Lichban:
please help

hi

I am trying to restore the stock rom uploaded by makbro to my A2107A-H with SP tools my problem is that the tool run fine till it hits 375666228 bytes in the yellow bar section then it just sits there.

Is there anything I can do to fix this ?
[Android General] bens64:
From where to start?

First of all I would like to thank you all for the great job you have done!

I tryed to find a way to upgrade my Lenovo IdeaTab A2107A-H_S309 but I have a very poor knowledge on Android systems.

What I did so far is only the rooting and that's all.

Can you please give me some informations for finding an updated tutorial for installing the latest (customized) Android system on this device?

Thank you for your help
[Android General] serc:
thank you Namrotek,

where can i find it and is this a custom rom, perhaps a site to read how to install ?:p

edit: i found it
[Android General] shn1343:
usb on the go for lenovo a2107

hi

i sent this massage before and try again

i want to connect flash memory 4 gb to my tablet ( lenovo a2107 ) but tablet can not recognize it .

what should i do to solve this problem ?

i think that it is a soft ware problem :

thanks for your help
[Android General] Lichban:
query

I got my tablet working again .. now want to ask if anyone got a sp flash tool version of pemergencymod as the cwm version I got does not restore (waited 8 hours no luck)
[Android General] ursulavasey:
Have a look at post #1838 several pages back in this thread. The pemergency rom is there along with the tools, etc to get things working. Alternatively you could try copying your cwm version of pemergency to your computer, unzipping it, re-adding the unzipped version to the sd card and using that version to update via the backup/restore in cwm. I haven't got access to my own files as I am on holiday in Ireland and my files are on my computer back in England, so I can't send you a copy, sorry.
[Android General] iranxperia.ir:
Android 4.1

Is ROM there above 4.0 for Lenovo 2107a?

custom or stock .
[Android General] tykenicol:
I bought a lenovo a2107a-h. Made a backup with that gscripts thing. Installed CWM 5.4.. and made a backup again with CWM. Can this help the ppl that needs a stock image? My addy tyke.nicol@gmail.com
[Android General] 4388:
Google Play Store

Hi!

I had mobo market in my tablet. It didn't satisfied me. So I decided to install play store.

I installed many versions of it but non of them worked.

When I open play store, it disappears quickly.

What can I do! Please Help me. :crying::crying:

---------- Post added at 01:26 PM ---------- Previous post was at 01:20 PM ----------

My tablet's language is Chinese or Japanese and i really dont want it, although i cant change it either way. :(
[Android General] shn1343:
flash memory reading

hi

i am wonderfull that no one answer my question

really there is no way to connect flash memory via otg cable to lenovo a2107

why????
[Android General] mathei:
Yes, is true. With lenovo a2107 can't connect Flash memory devices with OTG Cable.
[Android General] thunder141:
I have lost my backuped nvram folder but have my imei noticed. I restored it with mtk droid but now i have the issue of mac address changing every connect. as i need a router rule for my tablet, i there any way to set the mac to an address, that stays?
[Android General] syserr:
Unfortunately, no.

Now is a good time to point to my FAQ on the A2107A: http://xdaforums.com/showthread.php?t=2444967

---------- Post added at 09:03 PM ---------- Previous post was at 08:59 PM ----------

Is it a A2107A-F? Or A2107A-H? Do you want to run a custom ROM?

---------- Post added at 09:11 PM ---------- Previous post was at 09:03 PM ----------

You might find where someone modified their nvram folder to correct an MEID. If you do find this, please let me know. I have an nvram.img of my -F and -H, you can probably find others. If you can figure out a way to modify the nvram.img? as a filesystem? Then I can clobber my MAC and MEID and send them to you, and you can insert yours. Or afterwards you can probably clobber the MEID in nvram.img that are floating around.
[Android General] syserr:
FoxtrotKZ,

Thanks for your hard work. I know you have moved on to other devices, but can you answer me this. Is it just the NVRAM partition that contains calibration data?

I'm trying to figure out what some of the other partitions are used for:

SEC_RO

SECCFG

MISC

EXPDB

FAC

Thanks!
[Android General] syserr:
FAC Partition/Block

UPDATE: IGNORE THIS, It appears I can still get into Factory Mode even after zeroing the FAC partition/block out!

Feeling dumb. :o

Some amazing luck! I figured out what the "FAC" partition/block is. Probably some of the early superstars knew but didn't spell it out.

After dumping the FAC block to a file and inspecting it, I noticed there was hardly anything there. I wondered what the tablet would do if I wrote all zeroes to the FAC block. After I did, I booted. Came up with a "Set Country Code." In February or so, makbro was helping someone that had this come up and just loop saying it failed confirmation of the country code. makbro thought one of there blocks/partitions wasn't complete writen, maybe system.img.

Well, this is exactly what I found. FAC causes this Set Country Code to just fail/loop. Then it occured to me FAC is for FACtory. FAC is the block where the Factory Mode Partition is!

SP Flash Tool doesn't know right off what image file to put in FAC block too. It's a Lenovo thing, it seems no one else is doing it. I renamed the FAC image fac.img and fac.bin, never auto detects.

It also appears the FAC block was sometimes __NO_DL in the PMT/scatter depending on the model. (I have a -F scatter from someone that has this difference from mine)
[Android General] syserr:
I guess the FAC partition/block is only interesting to -F users. There is no FAC partition on -H.
[Android General] InfernoChz:
I finaly made it .Ive finaly flashed this little sht .The thing is that my 3g isnt working ,i had some problems on the default rom with 3g but i've made it to work but now ,how? Im going to instal the tesmart rom.

And btw which is the most good rom for this tablet?
[Android General] jittusm:
i was trying to modify the framework-res on a-h to enable voice call and when i pushed it back via adb and rebooted the tab got stuck in lenovo logo and wudnt bootup. how to fix it? i tried factory reset via stock recovery but that dint work. any ideas? i am having a very hard time getting cwm on this device.
[Android General] pickled-onion:
Working links?

Does anyone have working links for these files?

I can't find any in the thread
[Android General] doctorzohaib:
use external sd card as internal memory how?

hellooo

can n e one telll me how to use my external memory card as a internal memory as i have 4gb version of lenovo a2107h ...

some where i see main 2 sd or sd2 post ... can n e one tell me about this....\

thxx
[Android General] syserr:
Patch_main_to_SD2.zip may be what you are looking for. (in makbro's file area)

http://d-h.st/users/makbro/?fld_id=10259

from his post: http://xdaforums.com/showpost.php?p=37409096&postcount=800

---------- Post added at 03:00 PM ---------- Previous post was at 02:53 PM ----------

It's an insanely long thread... ;) Those files are quite old.

I believe all have replacements or aren't very relevant. What are you trying to do? (I'm staging things for a A2107A file repository)

---------- Post added at 03:06 PM ---------- Previous post was at 03:00 PM ----------

Hello jittusm,

I think if all you can do is get into the stock recovery, then you only have one choice... (because I think the only update.zip it will read would be Lenovo's, and they never released any.) Your one choice -- the nuclear option: fire up MediaTek's SP Flash Tool. It will flash CWM onto the recovery block.

Here the tricks will be:

Getting VCOM USB drivers to work.

Make SP Flash Tool happy by feeding it just the right scatter file + preloader etc

Selecting a recovery.img you like

...easy part... the Download button to write the recovery to flash
[Android General] pickled-onion:
Thank you so much.

I'm trying to flash CWM (I've tried several methods but none worked) and then Paranoid Android

If it helps, I've got the vodafone 7" variant, not sure of the exact model number but if it's needed I'll check
[Android General] tykenicol:
My device didnt even show any signs of life for two weeks. I tried everything. Taking out the battery. A miltimeter and and and. Its working now. When writing the preloader and the next part after preloader with sp flash tools, on a lenovo a2107 a h, try holding down the volume down button. The minute I did this I got a battery charging indicator. Since then I written many times staff to my lenovo always with success.

---------- Post added at 06:59 AM ---------- Previous post was at 06:28 AM ----------

My lenovo a2107 did not power on for two weeks after formating. Be careful when formating after formating you device will not show any forms of live. I read every sentence on this thread. Tried everything. Flushed my device with many downloads with sp flush tools. Even borrowed someones lenovo and prepared a stock rom from that device. Tried a miltimeter, took out the battery and and and. My device now works. Looks like after formating the device, you must get the preloader back. Just flushing it will not work. Try holding down the volume down button, before plucking it into the pc, and holding down the botton during the hole flush process.
[Android General] jittusm:
THrough fractory mode i got access to adb but su is broken to push files to /system/app .. and nothing seems to be flashing in the SP tools in recovery. help pls..
[Android General] kinta44:
Hi

It is possible to re-format internal memory, like in ZTE v970?

Now in Lenovo we have 1GB internal memory, and 1.35GB internal SD card. External SD is sdcard2. It is possible to merge all internal memory to one?

Wysłane z: / Send from: Lenovo IdeaTab A2107A-H 3G (mod) przy użyciu: / using: Swype, Tapatalk, Aero2.
[Android General] ursulavasey:
Hello all.

I have the A2107-H model, and I am having a couple of problems with it. I cannot get the tablet to recognise a sim card in either sim slot. I have made sure the IMEI numbers are correct, updating them with the MTK Droid Root & Tools program, but the sim cards will not show up. The options are greyed out. I reflashed the pemergency rom from scratch, to try to sort this problem out. It made no difference, as the sim options are still greyed out. I also got a NAVRAM WARNING: Err = 0x10 in the wifi settings, after flashing the pemergency rom. The wifi is connected via my home broadband network though. Does anyone have any ideas of how to get my sim cards to show up? I know I will have to re-enter the access point information too, but I need the sim cards to show up to do that.
[Android General] syserr:
You need to grab the appropriate recovery.img (either -F or -H)... so you will have to at least know that much about your model.

First you need to have root, unless you want to do it with SP Flash Tool or MTKDroidTools.

If you have root and you want the simple case, people have good luck by using Mobile Uncle from the app store.

Before you go playing, I'd use something like Root Explorer (or adb) and copy your nvram directory.
[Android General] syserr:
ursulavasey,

You've been very helpful in the past, so although I don't have your model or activated SIM, I'll brainstorm.

First, the MAC of your wifi being set right isn't that big of a deal, but the wifi errors are a good indicator that something is seriously wrong.

I have a couple thoughts as why it might be messed up:

1. Maybe those ROMs don't match your hardware all that well. (Unlikely)

2. MTK Droid Root & Tools isn't writing to the NVRAM properly. (More Likely)

3. Your NVRAM partition block is messed up somehow and MTKDRT writing to it is compounding the problem (Also More Likely)

What backups do you have of the NVRAM? A filesystem folder archive? A block backup? And are they known good? A block backup can be made with SPFT but it's not easy. The GScript backup can get the raw block and the filesystem folder. I have not used MTK DRT as it was doing about the same thing as my adapted Linux scripts, so I just went with that.

What you may want to do is make a new filesystem on your NVRAM block.... then copy the contents of a nvram backup tar or zip to it. This would fix it if it has filesystem corruption.

I have an nvram.tar and nvram.img and NVRAM(SPFT) of my single SIM -H. I'll look at those tomorrow.

---------- Post added at 09:06 PM ---------- Previous post was at 08:23 PM ----------
[Android General] kinta44:
I want 2.35 GB internal memory.

And my own sd card. How can I do that?

Wysłane z: / Send from: Lenovo IdeaTab A2107A-H 3G (mod) przy użyciu: / using: Swype, Tapatalk, Aero2.
[Android General] syserr:
In the -F firmware you are able to choose in the storage section: Default Write Disk = SD Storage. Does this do what you want? Is this not available in your ROM?
[Android General] kinta44:
I need to reformat internal memory. Merge all internal partitions.

Wysłane z: / Send from: Lenovo IdeaTab A2107A-H 3G (mod) przy użyciu: / using: Swype, Tapatalk, Aero2.
[Android General] syserr:
We can reformat, yes. I don't know how merge works. I understand putting all apps on the SD, but not partial. Do you have a link to info / discussion?

You have -H? How much flash total?