yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] cato1986:
black screen, doesn't boot

i am having the same issue, i get the lenovo boot animation and then the screen goes black and stays black. I also do not have a backup of my system.... so i basically have a device that does nothing. can someone create a backup image that you can use TWRP to restore your device???
[Miscellaneous Android Development] thel2dab:
I will check this out. It works fine on my device, however it may be a corrupted upload. I won't have a chance until later to sort it or get a backup image for you. You can use the SP flash tool for the A7600F but if you aren't comfortable using it I will post some instructions for it later.

Regards
[Miscellaneous Android Development] thel2dab:
I have tested the ROM and it works fine on my tablet. If you are experiencing problems and you please confirm that you are flashing on the Lenovo A10-70 A7600-F 10 inch Wi-Fi only Tablet with the MediaTek MT8121 chip....... The boot image in this ROM is not compatible with anything else. Ensure you are not trying to flash on the Lenovo Tab 2 A10-70F it will not work.

Can anyone else who has tried to flash it on the correct device confirm it works? It has had nearly 30 downloads but no one has left any feedback. It would be great if you could leave a note of this ROM works for you.

Regards

Lee
[Miscellaneous Android Development] cato1986:
not working

That's the model i have, but it shows a black screen. I'm not new to flashing either. I have several custom ROM devices. So I don't think it is something I'm doing wrong. Suggestions?
[Miscellaneous Android Development] Chrambo:
I'm one of the 30 guys who downloaded the ROM.

Thanks so much for the effort you put into building this rom.

Unfortunately, in my case, the tablet doesn't get past the Lenovo boot screen after installing the rom.

I didn't know there was a Wifi- only version of this tablet but i looked it up, and mine is the A7600F with the MediaTek MT8121 chip.

Nevertheless, there seems to be a Sim Card Slot ?

I will give another try later
[Miscellaneous Android Development] Chrambo:
Now i also get a black screen
[Miscellaneous Android Development] thel2dab:
Are you using the TWRP from the OP? It seems like a boot image issue. If you are using the TWRP from the OP? Are you performing the wipe and does TWRP report any issues when wiping or flashing?

Regards
[Miscellaneous Android Development] cato1986:
not working

Yes, I'm using TWRP....I also followed this thread. Nothing less, nothing more.
[Miscellaneous Android Development] thel2dab:
Ok guys thanks for reporting back. I suspect the boot image in the upload file is corrupt. I will upload a new file at about 8:00pm GMT tonight.

Regards

Lee
[Miscellaneous Android Development] thel2dab:
[MENTION=7924233]Chrambo[/MENTION], [MENTION=7921429]cato1986[/MENTION] [MENTION=679437]kiffw[/MENTION], [MENTION=6402047]leemg[/MENTION]

I managed to get a new ROM uploaded during my lunch break, if you try it and report back that would be great.

A7600-F CM-13 ROM
[Miscellaneous Android Development] Chrambo:
It works!

Thank you so much!
[Miscellaneous Android Development] thel2dab:
No problem, glad it's working. Enjoy. ?
[Miscellaneous Android Development] cato1986:
Hey there, my copy is working as well.

It looks great. I do have a question, is anyone else having trouble flashing full or super OpenGapps? I can only flash the smallest. And hey thanks a lot for all the hard work. I wish I knew how to contribute.
[Miscellaneous Android Development] thel2dab:
I am not sure but I think the system partition is too small to flash the bigger Gapps packages.

Glad it is working now. I am just looking to fix the GPS as it doesn't appear to work currently, I don't know if you anyone else can confirm this.

Let me know if you run into any problems.

Regards

Lee
[Miscellaneous Android Development] cato1986:
I tried using Google maps and it pinpointed my exact location. I'm not sure how to check it further, but if you tell me how I will sure try to test it!

Is there a way to increase the allocated system space? It would be nice to be able to use the aroma Gapps.

Anything I can try to help with?

---------- Post added at 06:58 PM ---------- Previous post was at 06:45 PM ----------

Oh by the way, I used Kingo root to root my tablet, then I installed flashify, I downloaded the recovery and used flashify to flash the recovery in. Super easy
[Miscellaneous Android Development] thel2dab:
I will update the OP to say that the flashify method works. Thanks for that info. :)

I found that although the tablet will locate you with WiFi, it never locks on to GPS satellites

There is a guide to increase system partition here:

http://xdaforums.com/showthread.php?t=2596030

I have not tried to do this and may brick your tablet so do it at your own risk.

Kind regards

Lee
[Miscellaneous Android Development] tichno:
Awesome ! Downloaded this afternoon. Installed immediately without problems. Works fine, no bug so far.

Thanks thel2dab for allowing me to update this tablet.
[Miscellaneous Android Development] thel2dab:
No problem. I've had this tablet for a while and it was bugging me that Lenovo never even gave us Android 5.0 for it which seems silly because it runs 6.0 quite well.

Regards

Lee
[Miscellaneous Android Development] cato1986:
So do you think the tablet is able to run cm 14.1, uh 7.1? I know the power saving is superior and the multi tasking is good. Rather built in.
[Miscellaneous Android Development] thel2dab:
Yes it is very possible, once a build of CM14 has been released for a device with a similar MediaTek chip I will port it over to the A7600F. I imagine builds will start being released in the early new year.

Regards

Lee
[Miscellaneous Android Development] PyroThePlatypus:
Hey there,

Will this Rom also work for my A7600-H tablet?

Thank you in advance
[Miscellaneous Android Development] faroo22:
Rooting a non-bootable 7600

Is there a way to install TWRP on to a non-bootable 7600?

ie, I can get to the recovery mode, but since the device does not boot up, I cant get to a terminal emulator app to issue the 'su' or 'dd' command.

Background:

I have this tablet which was issued at my kid's school with some educational software. The device would directly boot into that software and nothing else was accessible, including the ability to enable USB debugging. I did a factory reset on the device, now all it does is show the Lenovo logo and doesnt boot up. I am looking to install a custom ROM on this if possible.
[Miscellaneous Android Development] thel2dab:
I would suggest using the SP flash tool for the A7600F to get back to stock 4.4.2 and then follow to OP to get CM13.

Regards
[Miscellaneous Android Development] HOMMEM:
Thanks!!

It's awesome!! It worked perfectly!! Thank you soooo much. I've searched one rom for this device so long and finally i've found yours. Excellent!! :good::good::good::D:D
[Miscellaneous Android Development] harkaman:
Thanks alot, My son is very happy with this new rom. Great rom. working all fine.
[Miscellaneous Android Development] yeleek:
Brilliant!

I was thinking of replacing my A7600-F until I saw this. Installed without a hitch - tablet is much more responsive. Many thanks for all your work.
[Miscellaneous Android Development] BiG_FooT:
First thanks for sharing this rom! It's working unexpectedly very well and gave my sweet cheap tablet a 2nd live.

GPS is nog working as stated but not a real problem to me. I only have a minor issue when charging battery while tablet is switched off. You will see a charging white battery on a black background but screen will never switch off. Anyone else experiencing this behaviour?

UPDATE: After using it for some time I'm still positive about everyday usability. You have to switch location mode from GPS mode to 'Battery saving' in setting/location. Otherwise you will have wakelocks all the time because GPS is trying to set location but GPS is not working.
[Miscellaneous Android Development] cato1986:
If it is ported to Lineage OS and listed on their site when is working, do you think that development will happen. Not many people know about this ROM.
[Miscellaneous Android Development] faroo22:
Thanks much for this. After a bit of trial and error the tablet is working fine now.

I had initially flashed it with the wrong scatter file which caused the device to not boot at all. No logo, no battery charging meter, nothing. Connecting it to a PC showed "unrecognized device" instead of the previous "MediaTek". I kept it aside for a few days for the battery to drain out, then upon connecting to a PC it started showing MediaTek again.. This time around I flashed it with the stock A7600 rom, then started again with the initial instructions from OP.

Tablet is working fine now. Thanks for all the work in porting this ROM.
[Miscellaneous Android Development] BiG_FooT:
Question to Lee; YouTube is working fine but streaming videos do have issues. For example in Twitter app video is not working. Are you facing this as well?

I do not have porting experience but do you think that replacing video and audio codec with files from stock KK ROM will solve streaming issues? I have searched on MTK porting forum and it was mentioned there as a solution.

And video issues are know MTK issues on Cyanogenmod if I understood well.

Much appreciated to hear from you and hope we can improve the ROM further :svetius:
[Miscellaneous Android Development] moamahi:
Thank you for the great job!

I've a A7600-H do you think it will work on it?

Thank you again.

moamahi
[Miscellaneous Android Development] frederiksen:
This is great

Really great work:)
[Miscellaneous Android Development] MichaelRizzo:
Amazing

It works perfect and very smoothly

Installed correctly without any problems

Only found a little bug: when install some theme, the IU system process stops and make impossible to use the tab, so it needs to uninstall the theme APK from recovery file manager
[Miscellaneous Android Development] NanDroider:
Great great work. Thank you very much. :good::good:

I have a small bug with WiFi. Connection get lost after some minutes.
[Miscellaneous Android Development] Spartanj:
thanks,working great. but found one problem on twitch app,video is green screen with audio...sometime it works but only for first stream you open,then u change and it goes green screen again...
[Miscellaneous Android Development] Hugo Rune:
Worked a treat

No issues installing and breathed some new life into the old girl, thanks for the effort you put into it. (yes i watched the installation process)
[Miscellaneous Android Development] leemg:
House move, builders and other stuff i only had time today to get round to this and worked perfect. Thank you so much for this.
[Miscellaneous Android Development] StefanBuljic:
I have trouble with this device.I have stock rom and touch just not working,when I tap on screen nothing,same thing after hard reset,help somebody??

Thank in advance
[Miscellaneous Android Development] AfterShöcK90:
Help

Hi.

Managed to install this on my mom's tablet a couple weeks ago, awesome work with it, snappy, good looking rom...

Until last night.

All of a sudden it seems as if the thing doesn't have a battery. When we try to connect it we get the battery icon, then it turns itself on. gets to home screen and then it will die if you try to do anything on it. And that is the best case scenario. normally it wont get past the 1st loading screen (the blue android). Already tried multiple chargers, cables to no avail.

What I manage to see when it manages to get to home is that it shows the battery at a flat 0% and never increases.

The kicker of all this is that i cant access recovery (as i said, it tries to turn itself up normally) and adb for some reason cant find the thing.

Like I said I had this installed without issues a couple weeks back (it isnt the 1st time I install a custom rom) and only last night it decided to suddenly die, the battery was completely fine so i cant think it was a hw issue, mom says she didnt drop it or anything either.

So I'm at my wits end, please S.O.S. :crying:

UPDATE:

So yeah, I post this here and THEN I'm able to enter recovery.

Not much left to do there but to reinstall the rom.

Seems to be fixed for now, got to open and actually use the tablet without it dying and it seems to be actually charging (VERY slowly tho, up to 6% after 20ish minutes).

So if I were to make a diagnosis of this, I'd say that something f***ed up the kernel, but no idea really.
[Miscellaneous Android Development] StefanBuljic:
Some things:

1. You must wipe data,dalvik cache,cache and system partiton before instaling this rom

2. You must have original A7600F device for this rom

3. Yes,some part of kernel is maybe broken

4. And yes,just you have this kind of problem with this rom,maybe is something wrong with your device

Just try to reinstall rom,then try to charge it and quote me

Happy day friend!!! :)

---------- Post added at 07:12 PM ---------- Previous post was at 07:06 PM ----------

To enter in recovery mode

Remove the case from tablet with credit card or something,then remove littel screw above the battery.

Then remove battery from tablet for a five second,then put battery in tablet

To enter in recovery use PowerButton+VolumeUp,or down,i don't know right now
[Miscellaneous Android Development] 4henri2all:
Thank you for this great rom.

I was afraid that I had to stick to android 4.4.2. There was nowhere to find a custom rom on the net.

But installing your ROM was no problem, and after that I had only to re-install some of my app's to make it all working again.
[Miscellaneous Android Development] Eddster3000:
Just spotted this thread by chance and excited to charge my tablet and give it go (if I can remember which drawer I chucked it in!)

EDIT: Installed without a hitch! Winning! - so far so good
[Miscellaneous Android Development] PoisonNinja:
Hey, I was wondering, what Mediatek device did you port this from? I can try getting a device tree up based on that. Also, what exactly did you change?
[Miscellaneous Android Development] matt_simpson:
Any help appreciated tried bingo root loads of times and just keep getting unknown network error.

should have been king root. done.
[Miscellaneous Android Development] Mostar088:
Does anyone have problems with headphones?

When i connect them the sound comes from the headphones and the tablet at the same time.
[Miscellaneous Android Development] gigboyst:
Does it work on lenovo a7600hv ?

I don't know what's the different between a7600f and a7600hv?
[Miscellaneous Android Development] StefanBuljic:
No,this rom working just on A7600F

Respect,

Senior Member

StefanBuljic
[Miscellaneous Android Development] wazer1337:
Any chance for lineageOS port?
[Miscellaneous Android Development] SaberShip:
Thanks for your efforts, I followed the instructions and flashed the new rom with no issues! If I get some time I will look around for a Lineage OS rom that could be ported. Im new to porting roms but want to learn anyway.
[Miscellaneous Android Development] Mr.Ak:
Hey,great work!

How do you keep a track of downloads on google drive btw?

Thanks!

---------- Post added at 07:31 PM ---------- Previous post was at 07:30 PM ----------

Were they compatible with the stock rom?
[Miscellaneous Android Development] thel2dab:
I just use goo.gl to shorten the links. Then you can track link clicks from there.
[Miscellaneous Android Development] Mr.Ak:
But Ad(Money Generating) links are not allowed on XDA bruh.
[Miscellaneous Android Development] thel2dab:
You are right. There are no ads and no money is generated. It is literally just a shortened link. ?
[Miscellaneous Android Development] Mr.Ak:
Okay,thanks for the info.I thought shortening the link will generate revenue(as many sites do that for this purpose only) and so you can keep a track of clicks and calculate how much money you're gonna make,lol.

So the purpose of shortening a link(through google ofcourse) is to just keep track of clicks and make url easy to share?

You won't be making money even if the account is bonded with Google Adsense?

Sorry for the Off-Topic discussion. :D
[Miscellaneous Android Development] thel2dab:
It's fine it's a fair question. To answer your question, no I don't make any money from clicks. Anyone can view the amount of clicks by using goo.gl it is not tied to AdSense. All it does is make an easier link for me to use because the Google drive sharing link is ridiculously long. I didn't even deliberately use it to track clicks that is just a bonus.
[Miscellaneous Android Development] SaberShip:
(Update)

So far I have found several MT6582 Roms that are running Lineage OS 13.0 (Android 6.0.1). I have successfully ported one of these to the A7600-F and have almost all the bugs fixed (camera is the only bug remaining as far as i know). Not sure how interested you guys are in this rom, as feature wise its no different than the CM13 posted here. ;)

As for Nugat, I have not done much looking but Im not entirely sure if the MT6582 can run Nugat or not. As I have no idea how to compile roms for MT6582 so we may have to wait and see if someone else can compile Lineage OS 14.x for the MT6582 or nearby SOC. ;)
[Miscellaneous Android Development] Mr.Ak:
Ofcourse Mt6582 can Nougat but as of now only on a custom kernel(3.10.xx).
[Miscellaneous Android Development] jimag:
Excellent work.thanks
[Miscellaneous Android Development] holonur:
Hey! If you have already fixed almost all the bugs, please share here your ROM to see if somebody can fix all of them. It would make much more sense to have a ROM with no bugs that many with some.

Cheers!
[Miscellaneous Android Development] SaberShip:
I do intend to, as soon as I have enough posts to allow me to post a link. :p

In the mean time, does anyone have any ideas on how to get the FM radio working? I've been able to get the stock app to run as well as a few other MediaTek FM radio apps I've found. Each of them seem to have specific libfm*.so files to go along with them. They all scan just find, they all find local radio stations and so the current song playing etc... but I get no sound what so ever. I have tried multiple headphones, and the internal loudspeakers and there is no sound what so ever. The sound works fine elsewhere like in the music app. I've checked the logcat for errors and don't see any. Does any one have any ideas?
[Miscellaneous Android Development] StefanBuljic:
If you have internet TuneIn Radio
[Miscellaneous Android Development] wazer1337:
well you can just post a pastebin.com txt link without like this pastebin com slash xxxx with the link in it and let somebody look or tell us where to look for it on github by name?

---------- Post added at 03:30 AM ---------- Previous post was at 03:29 AM ----------

If you get the chance to look at nougat with linageos please let us know, I really hate my tablet a7600-f so slow and outdated 4.4.2
[Miscellaneous Android Development] Gr3nth:
Cheers mate, TWRP and CM13 working like a charm

Couldn't install Magisk due to preinstalled SuperSU I guess and I had to install another SuperSU zip but that's okay.

Thanks for your effort
[Miscellaneous Android Development] huaweistarter:
playstore fix

Rom is very nice, but my Playstore not working anymore and i have some bugs with my keyboard

Hope for help
[Miscellaneous Android Development] Zardoc167:
How has the development been going? I can't play Puzzle and Dragons on CM 13 unfortunately, so I'd like to test out Lineage as well! :D
[Miscellaneous Android Development] AfterShöcK90:
Any news regarding this?
[Miscellaneous Android Development] SaberShip:
Hello again! Sorry for a lack of updates. Recently I broke the charge port pretty bad on my A7600-F on accident D: I was able to find a cheap replacement mainboard and I'm finally back up and running.

Here is the link to TWRP 3.1 for the A7600-F

Here is the link to the LineageOS 13 (Android 6.0) rom I ported for the A7600-F

As for Nougat Im not able to find or create a 3.10.x kernel that works with this tablet, and to my knowledge the kernel source is not complete, so i'm not able to compile my own.
[Miscellaneous Android Development] wazer1337:
I searched google and it seems people have mt6582 on lineage os 7.12 ?

Maybe you can check google

Anyways for now I tested your rom and the recovery for the device, so far it seems stable with battery however the ui feels really slow and sluggish not sure if thats jut marsmallow.
[Miscellaneous Android Development] jm691:
Lenovo A7600H

First apologize for necroing this thread.

I have been waiting for Lenovo to upgrade this table which is identical to the A7600F except for the SOC chipset which is a MediaTek MT8382, Level 1 & 2 Cache memory, and also has a 2 core GPU the ARM MALI-400 MP2.

Comparisons are here:

devicespecifications.com/en/comparison/29e625c5

I want to know if there is anyone than can port any kind of ROM, whether it be Cyanogen, RM, or Lineage so I can get past Android 4.4. Some applications will not run on the older Android KitKat and Lenovo is a bad company when it comes to providing their customers with updated ROMS.

I'm willing to donate money to the development of a ported ROM. Any information is greatly appreciated.

Thank you
[Miscellaneous Android Development] maclancer:
Thank you so much Lee, I was able to upgrade my mom's a7600F successfully. I have some issues in the beginning because I was not using a SD card but I got one and went straight forward and now my mom's table is running Android 6. This is amazing, considering that she was stuck in Android 4.4, this is something that nobody else care to upgrade. Thank you so much again for your effort.
[Miscellaneous Android Development] Almironi:
[mt6582] 14.1

Found working mt6582 ROM on lineage os 14.1:

http://sandipsky.blogspot.co.at/2017/10/lineage-os-141android-nougat-712-for.html

Porting Guide: http://romhub.ga/mt6582-to-mt6582-porting-guide/
[Miscellaneous Android Development] VinBenzin810:
Yeah Here a porting Guide no verdor or Stock Rom From Lenovo so Cant Port anything.
[Miscellaneous Android Development] Heart1010:
Hi jm691,

did you find any custom rom which is working for the A760H model :confused:
[Miscellaneous Android Development] ultratoto14:
Hi thel2dab, just wanted to thank you so much for your work. I followed the first post and everything is working as expected. This is the revival of my tablet.

Thanks again.
[Miscellaneous Android Development] rodryguezzz:
You are a god among men. I've waited for years to get a lollipop custom rom for this tablet and today, because I didn't have anything to do, I googled "A7600F custom rom" and found this post, almost a year after being made. The custom recovery is also welcomed.

Two years ago I installed a Xposed module because I thought it was a normal app, not a module, and that corrupted my stock rom. Since I didn't have a custom recovery and I have no idea how to use Mediatek's tools to flash stock firmwares again, I had to take the tablet to a repair shop and pay 30€. If I had a custom recovery, I would have fixed the tablet myself in 2 minutes, like I always do with my Motorolas.

I'll give some feedback after I install the rom. BTW, it would be awesome if we got Oreo (Lineage 15) support, but I think that won't happen.

EDIT: Installed what you linked on your last post with Gapps Aroma. Everything is very smooth and works well. I only had 3 issues. Settings crash if I try to access Security and, for some reason, apps weren't showing in Pixel Launcher for a few minutes, but then they reappeared. FM Radio doesn't work but who cares. Overall it's a great rom, and way better than old 4.4.2.
[Miscellaneous Android Development] bh2015:
Hi there, I really hope you can help. It's the first time I try to root/flash a tablet and I'm already stuck at the very beginning. I copied KingRoot2SuperSu (the mrw folder) to my device, installed a terminal emulator app (treid two different) and everytime I enter SU it says:

/system/bin/sh: SU: not found
[Miscellaneous Android Development] Grennith:
Sent you a private message...

You do not need KingRoot
[Miscellaneous Android Development] bh2015:
Perfect! It's working fine now. Thanx a lot!!