yashsingh1/xdaforums huggingface dataset:
[Android General] syserr:
Oops on the mixup of links. I'll fix, sorry.

It shouldn't change anything in the nvram. NVRAM is somehow magically mounted, it's actually it's own filesystem in a partition block on the flash. So when my -H ROM installs it -- it ONLY writes to the BOOT and SYSTEM/ANDROID partition blocks -- no others. If I were you, I'd still have a backup of your NVRAM directory or partition block (.img).

About root vs no root, I think you noticed I removed the root files from the -H image -- it should be truly stock now. I'm pretty sure I was careful enough that no one would ever notice it was ever rooted.
[Android General] sam_pon:
Thanks for answering my question , you know : my problem is that i sent my tablet to changing the whole motherboard for only that NVRAM , So , if you are sure that it will not be touch , i will try the rom , because i realy liked this rom even before i test it ,

and one other thing : you told me that to keep partition block (.img) , what is that partition , and is that mean that there is a way to fix nvram fixed fix or you mean that this fix will be a temperory fix .

please excuse my english because i am egyption , and forgive me for all this questions , but i want to understand every thing before taking my decision .
[Android General] syserr:
Your English is certainly good enough.

What I meant: Your /data/nvram is really just it's own file system on a partition block on flash. You can copy the files form /data/nvram, but also you can make an image backup of the partition block of flash. Either way should work fine, the partition block image is a bit more "absolute" and it could be restored easily with SP Flash Tool.
[Android General] nefilim23:
Flashing this rom do not change mac, imei etc. WiFi works fine but still no 3g for dual sim :(

Can You add more languages to this rom? I would like to have polish language and working 3g ;).

Thanks for Your work. Rom is great and it is good to see this device have chance for better software.
[Android General] sam_pon:
Really , many many thanks for you , i got your point now about taking a copy of my NVRAM folder for safety Purpose only , but final question : could you please tell me how to make an image backup of this partition to be flashed later by SP flash tool .

i know that my questions too much , but i believe that you are the best one to answer me.

thanks for telling us about your try , and many thanks to make me sure that nothing will change .
[Android General] syserr:
Last night I wasn't successful at much.

I tried throwing FM on the AT&T ROM... App and drivers. Didn't work.

Then I tried putting the AT&T ROM on the -F but with boot.img tweaks so it would find the system partition. Didn't work.

I guess I need to scale back a little to have some success.
[Android General] syserr:
Yes, that would work as far as partitioning, but mixing bootloaders with different systems has failed me at times. I'm 95% sure it will boot fine.

FYI, the AT&T ROM/Layout does not have the dreaded FAC partition... this allows your idea to work. FAC appears on stock -F and Vodafone. It shifts all the partitions from Android down further down by one.
[Android General] icrazy:
Thank you i ll try it soon. I am not yet decided on foxtrot , battery drain in idle is insane. With lewa my tablet holds 1 week in idle / airplane. With foxtrot I barely hit 2 days. Too bad that lewa is cluttered and has some video issues.
[Android General] green2013:
Failed attempt to restore my semi-brick A2107 using Foxtrot rom, please help

Since link https://drive.google.com/folderview?...G8&usp=sharing has error i used the above post.

FAILED. I used the foxtrot rom. wipe data & cache, CWN to look for zip file in sd card (file is about 244mb). After reboot, it is stuck in 1st Lenovo logo and do nothing. So, i press reset button after 10min. I can still get into CWN.

PLEASE HELP! Thanks again :)
[Android General] jonessl:
Help!

When I try installing the SE_FOXTROT_REROOTED-signed.zip, I get:

-- Installing: /sdcard/SE_FOXTROT_REROOTED-signed.zip

Finding update package...

Finding update package...

E:Can't open /sdcard/SE_FOXTROT_REROOTED-signed.zip

(bad)

Installation aborted!

Any ideas?

UPDATE: Well, what do you know?

I downloaded direct to the tablet and the ROM can be installed fine.

I suspect this is the same problem I have been having with pemergency.

Anyhow, this particular ROM seems to be slick and fast, so I may stay with it!

It certainly is better than the stock ROM.

UPDATE: Languages are US and RU only. UK would be good.

DOES ANYONE KNOW WHY A DOWNLOAD TO A WINDOWS MACHINE AND THEN COPY TO THE SD WILL NOT WORK WHILE A DIRECT DOWNLOAD DOES?

DOES ANYONE ELSE HAVE EXPRERIENCE OF THIS?

Syserr, as you have uploaded ROMs to Google Group,s you must know something of this!

---------- Post added at 10:18 PM ---------- Previous post was at 10:00 PM ----------

I have tried for weeks to install the Pemergency final ROM without success.

Could you please tell me exactly how you achieved the install?

I have followed Pemergency's guides in full, but CWM will not let me install the .tar file (it is not a zip as such).

If you could be kind enough to spell out what you did, in terms of getting Pemergency instaled, I would be grateful.
[Android General] syserr:
Hey there jonessl,

I guess you got it to boot? (your private message is a day older than the main post I'm replying to here?)

A .tar is of course a different kind of archive file. WinZip will open it. I can't remember particulars about Pemergency, but I'm sure inside that .tar file you will find all sorts of stuff, maybe a .zip that CWM could flash.

FYI, if I ever get in a totally dead state, I'd Download (push from PC to device) in SPFT an entire ROM. ANTIK will only get you a CWM Recovery, so I used to push ClearSky. Now I have some more tailored SPFT-style ROMs.

Windows/Browser could be grabbing your .ZIP and mangling it during download somehow. In know sometimes browsers decrypt on the fly turning a .tar.gz into a .tar but still leaving the extension .tar.gz.
[Android General] coolboyssahil:
NVRAM lost due to whole NAND flash

I have been searching lately for an active ideatab form. I successfully found one. :D

Hey [MENTION=4796707]syserr[/MENTION]

I want your help. Is there anyyy way to get back original NVRAM coz I lost my MAC Address when I flashed previous FOXTROT ROM.

And if not it means that MAC Address Spoofing is possible in Ideatab by modifying NVRAM. Do you know how to do that?:confused:

Also is there anything important in NVRAM except MAC and IMEI...?
[Android General] jonessl:
I too could do with a simple explanation as to how to replace the "dumb" NVRAM *only* (i.e. without modifying other partitions, or needing to reflash a whole ROM) with the backed-up NVRAM. I have a tarball created from nandroid and also from the APK shell script.
[Android General] coolboyssahil:
I know how to do that

I know how to do that... :rolleyes:

I am asking that can I get back my factory MAC Address. Coz as per my knowledge MAC Address are hardware written then it means it must still be present somewhere and also Mac Spoofing must be possible by editing NVRAM contents (Ain't there any such app to do so)

I recovered IMEI as both IMEIs were written on back lid but I dnt remember my mac address :(

Is NVRAM just MAC and IMEI???
[Android General] syserr:
On the subject of Pemergency's ROM. It was "passe" 11 months ago. I've never even really worked with it since it was so early and I read so much saying Foxtrot, LeWa, Chinese were better. But... If I find it, I could give it to you, and I could fiddle with it I guess and give you some kind of evaluation.
[Android General] syserr:
I've explained a few times the complicated sync relationship between NVRAM partition and /data/nvram on the filesystem. The NVRAM partiton has your IMEI (if you have a -H model) and WiFi MAC. It also contains other configuration/calibration stuff... for all kinds of stuff like GPS and brightness, stuff like that.

Search XDA for "syserr sync nvram"

When you do a "Factory Reset" or better known to me as "Wipe Data/Cache" it formats the /data partiton. So that means /data/nvram does not exist. It is then rebuilt from the NVRAM partition. If the NVRAM partition/image is blank... then there seems to be a way for the booting kernel/system to create it, but this way it doesn't have the good stuff like IMEI and MAC. I've heard people complain about brightness settings too after their OS creates /data/nvram as opposed to inheriting it from the NVRAM partition image.

See me previous message about restoring NVRAM.

But on coolboysshail's issue... You basically need a donor NVRAM (from another system) if you want things to act right. Right now, I don't know how to change the IMEI or MAC IN the NVRAM partition. I saw signs that one of my ROMs would propagate changes from /data/nvram to the NVRAM partition image - but I think that is rare. I'm sure HexEditing of the NVRAM Image can be done, but it's not straight-forward. I tried mapping it out for about a half hour and decided it wasn't worth it.

Changing stuff in /data/nvram... yes you can spoof MAC and IMEI, no problem. I don't think MAC or IMEI are saved anywhere else in hardware. MobileUncle app can change your IMEI, but it only changes it in /data/nvram -- nowhere else. Do you have a -F model? I posted my -F NVRAM partition image in my SE -F SPFT ROM. You can use my MAC, I don't care. I didn't post my -H NVRAM image, but I might.
[Android General] coolboyssahil:
Ideatab A2107A-H Dual Sim NVRAM.img

Hey buddy,

My MAC Address is 00:23:b1:a5:7b:b6. Can you cook a NVRAM of this MAC Address?

If not please upload an image of NVRAM for -H Dual Sim Model.
[Android General] syserr:
I don't have a dual -H. A guy gave me his, if I can blank them or replace them... I'll let you know.
[Android General] syserr:
I should clarify... I have a guy's NVRAM that I might be able to clear his IMEI and give it to you.... Or he might have attached it publicly. You might search for it and try it. Was posted about October or November.
[Android General] jonessl:
Hi, Syserr!

Thanks for such a well-considered and comprehensive reply. There were a lot of questions, so I am grateful for the answers.

Well - the SD Card. Despite it being new, I used a good test program - h2test2 - which found 31.2/31.2 GB to be corrupt. What a stinker. So half of my problems come fromt that. I have a new card now.

The other half have of my problems come from SPFT. I can flash the 800 MB original ROM image fine, but for whatever reason - even the 1, 2, 3 of ANTIKIRPICH, CLEARSKY, TWRP - pretty well most things don't work (by which I mean not even the Lenovo logo comes up). ROM images such as S309 are fine. I have read and re-read, erased flash, tried multiple ADB drivers, pushed the VOLUME and POWER BUTTONS and RESET switch so many times, tried every way I can to get various ROMs to load with BROM errors popping up that I have had enough! (Not your fault, you have been most helpful, just time and fatigue). I have even worked out how to use MK Droid Tools, and how to make a flashable set of files from the original ROM and surprisingly that does not work either!

I have yet again tried to get Pemergency to work as an update. As it is a tarball, it doesn't surprise me that it does not update, hence my requests to others for the older A2107A-H v9.zip, just to try it out.

But I agree, it is dated - and so for that matter is every ROM but your Foxtrot.

So I have - after spending a LONG time trying lots of things - given up.

By that I mean, I have swallowed the bullet and having installed my original (800 MB) flash backup - reinstalled your Foxtrot. I did it this way to keep my NVRAM - which is there.

I do have some questions, much less than before, so I can move on and actially use the tablet at last. They are:

1. Is there a way of designating sdcard1 to be 2 and vice versa (like the original). The reason I ask is that I don't want to do more flashing and I want to use a program that can repartition the internal SD on the fly without data loss (I hope). I can;t use the custome scatters, because scatters/SPFT just don't seem to work for me, unless I limit it as above.

2. There is a number in the bottom RHS of the screen which seems to be related to Wi-Fi which is going up/down all the time. What is it, and is this to be expected? (I don't think it is an authentication problem, as my Wi-Fi [given it has the correct NVRAM] is stable. Can it be switched off?

3. I know you made your own Foxtrot variation "for testing" purposes. However, given my past trauma, I would prefer to stick with it. So, all I need to ask - is there anything specific I am missing by note using the original (v110) Foxtrot? In particular, is *your* Foxtrot ROM (as I believe is stated) fine for a 2-slot EU tablet?

Thanks again.
[Android General] syserr:
Also, you could try different SPFT. I think I use 1316.

I'm sure it can be done, but I haven't done it yet... and would take some time.

This is with the Foxtrot ROM? I don't know. I'm sure it can be tweaked, but don't know details.

My re-rooted Foxtrot works identially to the original except that Busybox and SuperUser work better in my opinion. Yes, it's for a dual SIM.

Sorry I'm not more helpful. I may be down to know A2107A to break. Gave away 3 as gifts and my last one (-F) has power button issues. If I get a strong itch I can still borrow my son's -F or my daughter's -H though.

I'm monitoring the status of building our own ROM's from source closely. MediaTek builds are hard, but I'll be at the front of that world if possible.
[Android General] jonessl:
Thanks again, for all your answers. I certainly don't want you to put in time changing things for one person.

Regarding the two digit, rapidly changing numbers, there is a 2 digit indicator in blue next to the Wi-Fi, both at the bottom of thescreen and in the bo that comes up for comm settings when one clcks the bottom of the screen (where the USB connections, downloads, etc , X is). This iis for your modded-Foxtrot ROM; I have not tried others for the reasons stated.

As I said, you have done an excellent job. Why something that should be easy is so difficult in SPFT remains a mystery and I will let it rest there. It's not because I am stupid or incapable of following instructions, rather it is that I would need a superior knowledge of the Android OS, MFT and memory structures to get it to work when (for me) the guides do not.

Lastly, thank you for putting my mind at rest about the dual SIM capability. Your guide infers it to be so (inasmuch as the two above are said to be risky for dual SIM models), but this has now made it explicit.
[Android General] priyanga:
fused partition

Hi doyou have any rom can install as fused partition? because ihave only a2107ah 4gb .thanks in advance
[Android General] priyanga:
numbers in the bottom right side

Regarding the two digit, rapidly changing numbers, this is the foxrtot battery charging indicator (new) when you conect to usb in pc.
[Android General] jonessl:
Brill. This makes sense. At one stage the numbers were changing wildly but I added another battery indicator and the numbers matched up. Also, it has settled down now!

Thanks again!
[Android General] syserr:
The DATA (or USRDATA) partition can only be 2GB. This is the partition that is wiped if you choose "Wipe Data" in Recovery. Things break if it's larger than 2GB. This must be the reason MediaTek keeps it small.

Typically, you get an internal SDCARD (or FAT) with the rest of the flash. This behaves just like an SDCARD but you can't pull it out.

Some ROMs seemlessly install Apps to the SDCARD without patching. My AT&T A2107A-H had a ROM that would do this. I'm not exactly sure of what the patch script that was on makbro's ROM page does.
[Android General] rocastro20:
proces

Hellow men.

I just download the files are needed for flash an A2107A-F tablet, can you help me with the proces and recommended which of the Rom works better

thanks
[Android General] syserr:
I prefer my -F SRS (Stripped Rooted). The process, do a lot of reading. Read the FAQ in my sig and the few posts after the OP.
[Android General] xmyszka:
Hallo

I'm polish speaking and can U help me enable or flash other languages on A2107A-F ?

Of course i have cwm recovery instaled but -H version have another partition layaut and can not boot on -F model :(

I need help to make Polish language system menu, can U help ?

sorry for my bad english
[Android General] atefi:
persian language

Hi everybody

I need to have persian (farsi) language support in this tablet i tested morelocate 2 but it did not work

I need your help please

Is it possible that farsi hides in this rom?

2107A-H

4.0.3

rooted and cwm recovery installed

Thanks to all
[Android General] kenzok:
I've posted this before too in this topic

download this app "

Set Locale and Language

" from GPlay. For me, it translated all rom into my language (the only thing is that at first start-up, the tablet will freeze some 1-2 minutes before it reveils your new language)
[Android General] spookyx:
Hi syserr

I tried following these steps...

I got to format it...

but then nothing happened after next step. I have unplugged the USB and hit reset button and next steps... but nothing...

Now the tablet is completely dead. The computer sees it in the device manager but can not reformat it again or Download into it any rom or anything...

Any ideea? I got all of the files from your google drive.

Thanks...
[Android General] spookyx:
I have made some progress... the problem was the driver in windows. Windows installed something else, some alcatel driver...

Now I have a full rom flashed, the srs on... I am able to get into recovery. It starts booting, the lenovo logo display for a few seconds, then dissapears and the screen remains lited on but nothing on the screen.

Went to recovery... cleared cache... reboot... same... screen is on, but nothing on it... I will keep trying with different stuff... maybe I need a new format... ???

This is the ROM I have flashed: SE_A2107A-H_ATT_A404_ROOTCRUFT_SP and used to format from (scatter file)
[Android General] sverza:
When yesterday I read your post I immeditley thought to some driver issue (also me I had some issue with Lenovo and windows drivers... :/ ).

So, to solve it, which drivers have you installed (again)?

In recovery (CWM or TWRP?) did you clear also dalvik cache and factory?
[Android General] BangaloreNoob:
Lenovo Idea Tab A2107A-F bricked.

I was trying to remove some of the bloat ware on my own and ended up bricking the device. I rooted it and then used RootUninstaller to remove some of the Apps that I thought were unnecessary. I was quite sure of what I was doing and hence didn't take any backup! :crying:

Since then I am recover the device by installing an optimised custom ROM. I searched this thread (and other related threads) for a scatter file that can be used with SPFT to download the ROM provided by syserr (SE_SRS_A2107A-F_S486_130221-signed). Haven't been able to find one. Can someone help?

PS> I tried with the scatter file for -H tab but that didn't work.

BangaloreNoob
[Android General] sverza:
But the ROM you have reported isn't flashable with SPFT, only with a CWM recovery...

What do you mean? It gives you an error, there is no activity, ...?
[Android General] syserr:
sverza is correct. BangaloreNoob, if you want an SP Flash Tool type ROM, look for my ROMs with "SP" in the name.
[Android General] syserr:
Let us know if you are still stuck.
[Android General] splague:
Hi, I have now Foxtrot modded firmware on -F model (no sim), wanted to flash yours, but after installing via TWR it's stuck on Lenovo logo, and the SP Flash Tool doesn't want to instal SP-version of your firmware sayin like "unknown firmware".

Any ideas?

THANKS!!!

---------- Post added at 12:46 PM ---------- Previous post was at 12:10 PM ----------

P.S. I have flashed SP firmware on another -F device with no problems, but can install it on foxtrot -f devise now :(
[Android General] saustin44:
sim management not available

bro 1st thanx for helping on this thread. ur foxtrot rerooted.zip working fine on my a2107-h dual sim.but in ics 4.0.4 rom no sim detected. sim management is hidden in system setting so plz remod 4.0.4 rom for a2107 dual sim with calling feature thanx
[Android General] manos-tao:
hi for all i have a a2107a-h is a dead and what to do to enliven;;;

I had failed installation rom not enter recovery mode :(

I want a wizard and a proper rom
[Android General] mathei:
2107 a-h never dies

Reset, reflash a firmware with SPF Tool, and reroot, reinstall custom recovery. For use SPF Tool, You should not go in recovery...

Read this:

http://xdaforums.com/showthread.php?t=2013156

I use SE_FOXTROT_REROOTED-signed.zip (updated Nov 11, 2013) Good!
[Android General] manos-tao:
Thanks my friend but don't work link how is this room?
[Android General] sverza:
Here

http://xdaforums.com/showthread.php?p=46201425

you can find different ROMs

Here

http://xdaforums.com/showthread.php?p=46201425

you can find lot of useful info

You have to flash the tablet with SPFT. Search and you'll find other info if links I have written aren't enough
[Android General] manos-tao:
how to install this rom SE_SRS_A2107A-H_ATT_A404-signed.zip (updated Oct 8, 2013) my tablet is is dead not enter recovery mode

there is a video to see the process ??? :(
[Android General] sverza:
... again...

you CAN'T use that ROM if you CAN'T enter in recovery mode!

I have to use this ROM

SE_A2107A-H_A404_121011_ATT_SP.7z with SPFT (no recovery needed)
[Android General] manos-tao:
sorry for my english :( ok i have this SE_A2107A-H_A404_121011_ATT_SP.7z What is the next stepinstall on smart phone flash tool?? open file scatter-loading and download?? and next??

---------- Post added at 02:33 PM ---------- Previous post was at 01:56 PM ----------

I did what I said above

but does not work what am I doing wrong
[Android General] manos-tao:
ok!!!!! in work my pc have a problem:laugh::laugh::laugh::laugh:

I have now chance rom what regulations to put a another rom to put the English language on this rom I want him to Perrault and phones :p:p:p:p
[Android General] syserr:
You should read some more. ATT = AT&T single SIM ROM. If your A2107A has a dual SIM, you will probably see bad things with this ROM. For the process, I've outlined it pretty well in this video: https://www.youtube.com/watch?v=9V7m9UCM4-c In that video pay close attention to the GREEN instructional screens.
[Android General] spookyx:
Sorry for the late reply. I restored the drivers I have downloaded from your drive (sE_A2107A_ADB_USB_DRIVER_120827)...

this is my mom's tablet so I have access to it once in a while when I need to fix it.

Now the issue is that I need to apply an SDCARD patch or something to make it work properly... it is out of space and can do nothing.
[Android General] manos-tao:
thanks my friend nice video!!!

yes my tablet have 2 sim

1) who is this rom? give me 1 link please

this video I do not see the 9:12 and months after you get this file

2) then what do I need to spend telephone

3) I am rooted how install this root SE_SRS_A2107A-H_ATT_A404-signed.zip (updated Oct 8, 2013)

thanks!!!!​
[Android General] spookyx:
HI syserr

have 2 issues/questions

I have installed the Vodafone ROM. Seems nice, especially that it has lots of language packs.

My issue now that it keeps loosing the root and the recovery I install...

Also, what do I have to do to move the apps off the internal storage to internal memory / sdcard?
[Android General] syserr:
http://xdaforums.com/showpost.php?p=47911722&postcount=152

I bet you are running into that problem. The SPFT images that I made are unmodified. Which apparently means they will clobber Recovery on boot. (My CWM images I believe have removed the recovery-boot.p file)
[Android General] spookyx:
Thanks a lot. I will try it out in a few minutes... have to take it back to my mom the tablet...

Any solution to the internal memory issue and forcing everything to go into internal storage/sdcard?