yashsingh1/xdaforums huggingface dataset:
[Android General] gretan87:
hi, i just bought this tablet this week and i upgraded it to lollipop through OTA.

my current build number is : T2-A7-10F_S000054_150801_ROW (i believe this lollipop version is still buggy? )

i read in the first page that the latest version is Lollipop A10-70F_S000121_151222_ROW and yet i don't get the OTA update for it. so, if i want to flash it to the latest version which part of the guide in the first page that i should use?

please help me. thank you :)
[Android General] Tzul:
[MENTION=7246828]gretan87[/MENTION] Wrong tablet. You have the Tab 2 A7-10F (7" screen). This topic is about the Tab 2 A10-70 (10" screen). Your tablet is based on a MediaTek chip as well, so you can probably make use of some of the knowledge found here (e.g. how to install and use the SPFT), but the specifics (e.g. the custom recoveries and firmwares) won't work on your tablet.
[Android General] hajkan:
DOes anyone know if I can use any Lenovo pressure sensitive stylus with this device for drawing etc?
[Android General] Tzul:
[MENTION=5336215]hajkan[/MENTION] You can't. Those "active" pens (pressure sensitive tip, eraser on the other end, maybe one or more buttons) use electromagnetic resonance "digitizers" by Wacom or N-trig. That is, those pens require special hardware support, they do not work with plain capacitive touchscreens.
[Android General] gretan87:
oh well, that was embarassing. :p

good thing i ask first before trying anything. thanks!
[Android General] lion567:
This situation is called deep discharge. Li-Ion and Li-Pol batteries voltage could faulted below 3 V after long storage due to self-discharging. Tablet charging controller treated this as "no battery" and don't start charging. The only option in this case - direct charging - applying charging voltage directly to battery.

Depending on the charger and the self-discharge of the battery, a topping charge is recommended once every 500 hours or 20 days during long storage.

This could be checked by connecting powered off tablet via USB to PC with drivers for SP FlashTool (USB VCOM) installed. Preloader USB VCOM port should appeared for 2-3 seconds in Device manager (see attached screenshot).
[Android General] rawr703:
Contacted Lenovo, sending it in under warranty for repair. thanks for the info, I'll make sure never to leave it dead for more than a few days. Funny thing is my old 7" Nexus tablet stays dead for months on end and charges back up right away with no problems, so I was surprised to learn it's an issue with the Lenovo. According to Asus the Nexus 7 is a Li-Pol battery and the Lenovo is a Li-Ion. Maybe it's just the Li-Ions that have that problem.
[Android General] Tzul:
[MENTION=1423428]rawr703[/MENTION] Well, it shouldn't have happened... was your battery near empty when you stopped using your tablet? Did you shut down the tablet or keep it on, in standby? Regardless, the tablet should have shut down automatically once the battery voltage dropped below a certain value, and then the self-discharge rate normally should be low enough that it won't drop that soon below the critically value where you can't recharge it anymore.

Anyway, if you're not going to use a lithium-ion powered device for a while, then it's best to charge it to about 50%, turn it off completely, remove the battery if possible, and store it in a cool and dry place. This way, the battery should stay good for several months, but checking regularly is a good idea. Also, Li-po is a form of Li-ion. Tablets and phones all use Li-po, even if they say Li-ion, because Li-po basically means Li-ion in "pouch" format (thin and flat) as opposed to round cells like they're being used in notebook battery packs.
[Android General] rawr703:
Good to know. I have the memory of a goldfish though so I couldn't tell you what sort of state the tablet was in the last time I used it. Just glad Lenovo is taking it in, even if it means I have to pay for shipping.
[Android General] suhridkhan:
Hi, welcome to the community.

We have another thread besides this one. You shall find a great discussion about the issue you have mentioned.

http://xdaforums.com/android/help/lenovo-tab-2-a10-70f-root-t3122226

It's a long discussion, you will need to do some reading, but I believe the answer is there.
[Android General] Tzul:
Hello! There's another thread for this tablet on xda here, and you might also find my German thread here useful, if only for the collection of OTA firmware links.

I have quite a bit of experience with MediaTek Android devices as well. As discussed here or in the other topic, MtkDroidTools doesn't work properly with this tablet or others with newer MediaTek chips, and it probably won't be updated anymore. But you don't really need it, because thanks to the SmartPhone Flash Tool (SPFT) you can make complete backups without even booting the tablet for the first time - provided you have a scatter file already. And we do, no need to try and create one from scratch.

By the way, the latest version of the SPFT, v5.1548, makes readback (backups) even easier: open its "option.ini" file, find the "[ReadBack]" section and change the line "ShowByScatter=false" to "ShowByScatter=true". That way, the Readback page will automatically list all the partitions from the scatter file loaded on the Download page. You'll still have to double-click each entry to change the filename, though.

Like I already said, MtkDroidTools is basically dead. You get a good scatter from one of the firmware releases that have been floating around for many months. Or by creating one manually, which requires the partition info from an OTA update or /proc/emmc, plus some special knowledge.

MTD is the old tech, it hasn't been used for quite some time, all devices that I know of use EMMC now. MediaTek divides EMMC into separate regions now. The preloader is in the "EMMC_BOOT_1" region (which confusingly is called mmcblk0boot0 in /dev/block), whereas all the "normal" partitions are in the "EMMC_USER" region.

The values in /proc/emmc are correct. If you read closely, you'll see that they are in sectors, not bytes, so they need to be multiplied by 512 (hexadecimal: 200) to get the byte values.

I wrote some more info here.

The partition layout, i.e. the scatter file, is not changed by rooting or inserting an SD card. It's also not changed by OTA updates. As far as I know, only full updates to be flashed by the SPFT in "Firmware Upgrade" mode can change the partition layout, but then they'd come with a new scatter file anyway. So far, the Tab 2 A10-70 (both F and L) has had the same layout/scatter for every firmware version, and I doubt that will change.

You could try to familiarize yourself with the SPFT and use its readback functionality to make your first backup. Or you can immediately flash TWRP and use that to make a backup. Flashing TWRP will overwrite the stock recovery, of course, but that's no big deal, because I've backed up some stock recoveries for everyone.
[Android General] loner.:
Are these files available in twrp flashable zips?

Sent from my Lenovo TAB 2 A10-70F
[Android General] Tzul:
[MENTION=5142831]loner.[/MENTION] No useless fullquotes of preceeding posts, please.

Which files are you talking about?

If you mean the stock recoveries: TWRP can flash images, not just zip files. Go to the install menu, there's a button to toggle between zips and imgs.
[Android General] loner.:
LMAO, Is that some kind of rule or just your personal preference? What's useless to you is not my concern is it?

Sent from my Lenovo TAB 2 A10-70F

---------- Post added at 10:49 AM ---------- Previous post was at 10:12 AM ----------

Then you will not, or can not, make the files that you offer flashable in recovery?

Sent from my Lenovo TAB 2 A10-70F
[Android General] Tzul:
[MENTION=5142831]loner.[/MENTION] Not quoting a full post, especially not if it's the previous post, is common nettiquette. If you had quoted just the relevant part, I would have known what your question was referring to. But that way I had to guess.

The stock recoveries are flashable in TWRP. You just have to extract the img file you need. Every decent file manager in Android can open zip files to do that.
[Android General] chris5s:
I've done some digging around, and have found the solution to my issues of Android System using 30-45% (if not more) of CPU all the time.

I noticed in Kernel Adiutor that the 1st two cores were never going below max freq, whilst cores 2 and 3 would go offline occasionally.

And in GSam Battery Monitor I could see that Android System was hogging a lot of that CPU time...

Opened terminal emulator and typed

top -m 5 -t

(the top command displays real time processor/kernel activity)

The 2nd column displays System usage, this was around 30-45%

The far right column displays the process involved, and the top culprit was ccci_mdinit.

Googling around I couldn't find too much info on this process, other than it was related to ?"radio".

Ok, worth a shot. Opened up ESFile Explorer, headed to system/bin/ccci_mdinit and renamed it to ccci_mdinit.bak (just in case, y'know?)

Reboot. Now, all cores are running at minimum (468MHz) when they should be, offline when they should be.

And the system isn't being kept awake when the screen is off.

FM radio. Bluetooth, Wifi, GPS, accelerometer - all working fine.

So I can only assume its a process related to mobile data services?

Anyway, give it a shot and see if it works, if you're experiencing similar issues with the Marshmallow ROM.

Peace.

---------- Post added at 09:52 PM ---------- Previous post was at 09:21 PM ----------

And for the first time, kernel aduitor also tells me my device entered deep sleep, something hitherto unknown or unseen in these parts...:good:
[Android General] evilbunny1984:
That would explain it; I originally had my dedicated Android-to-PC lead plugged into my unpowered hub. D'oh! [face-palms:rolleyes:]
[Android General] ericDraven77:
Can anyone give a summary what to do if you are on stock Lenovo 0122 Software and want to upgrade to the MM Android?

I had some phones already which I rooted and stuff, but the thing with the SP Tool is something I just don't get.

Is the summary in the 1st post here still working for the MM Update? What is this scatter file and which one do I need and where to get it?

That confuses me a bit :(

Thanks in advance for help!
[Android General] chris5s:
The explanation in the first post still holds good.

When you download the mm file, unzip it and all the files you need, including the scatter file, are included.

---------- Post added at 10:51 PM ---------- Previous post was at 10:34 PM ----------

Btw, if you have TWRP installed, take a backup first and save it somewhere on your PC, in case you want to go back to it :good:

And make sure you have a good charge in your tablet before beginning.
[Android General] zMILWAUKEE:
Your a genius, and very persistent...I'm checking that out now....
[Android General] supaet:
good job, that seems to do the trick, have not test standby time yet, but can definitely see the cpu usage went down to single digits vs constantly above 50%

thanks
[Android General] Jammol:
Is it possible you can provide a mirror? I am unable to download from mega
[Android General] demeez:
Thanks for this, I'm loving MM with what limit use I've had with it so far, the tablet is finally feeling polished, can finally use my substratum dark theme I use on my phone, wifi signal strong, audio clear with no weird fluctuation in sound when listening at low levels, colour reproduction looking good, very snappy with next to no lag but my battery life has been getting destroyed.

I imagine like you said it has something to do with the mobile services, I wonder if even though we don't have a sim card inserted it might be trying to constantly scan for one? I'm curious if anyone has read feedback from the L variant owners to see if they don't insert a sim card if they have the same draining issue.
[Android General] Jammol:
Substratum dark theme? Whoa....why you no share link?!!!!:laugh::laugh::laugh::eek::eek::eek::D:D:D
[Android General] demeez:
Hmm, apparently I don't have enough posts to share the links, but just search substratum in the play store, install the theme engine first, there's a bunch of free themes you can try out, or if you want to check out the one I use just search for Swift Dark, it's a paid theme but the developer is very active and constantly updating it.
[Android General] Jammol:
Nice! Thank you sir. I run CM on my Nexus 6P but there's no CM for this tab so Substratum it is. I used to run substratum builds on the 6P but I prefer CM.
[Android General] demeez:
Yeah I prefer the CM engine just because substratum would force you to install theme ready gapps to ensure everything was properly themed, whereas CM is much more simpler to use but I recently discovered this developer's theme that can theme apps like facebook, facebook messenger, instagram, etc. I'm sure other paid ones probably offer themed apps you probably don't get from free themes.
[Android General] philje123:
You are a genius. Thank you.

I made this change last night, rebooted the tablet then left it with 57% and WiFi on. This morning it's only dropped to 56% and it's had a nice deep sleep!
[Android General] chris5s:
Is there a way to enable dt2w that I haven't found yet? It was there in settings - gesture controls on LL but I can't find a similar option with the MM ROM.

Peace.
[Android General] rra1:
The renaming of the rogue radio background app fixed my battery drain issue too. Thanks so much! So we have an Airplane mode workaround, a 4G wireless signal workaround, and most importantly a battery drain workaround. Now hopefully somebody figures out the lockscreen wallpaper!
[Android General] Mika:
No problems here with changing the lockscreen wallpaper on mm ?
[Android General] philje123:
I also can't set the wallpaper.

But I can set it from a 3rd party app (Zedge).
[Android General] alan081954:
I have the Lenovo Tab 2 A10-70 F Asian version is there a custom rom for this one?
[Android General] philje123:
I've noticed the tablet has become a bit slow.

Youtube is stuttering like mad even at 144p resolution!

I want to roll back but can't get into download mode. Any suggestions?
[Android General] heisert:
Short Update bout the damaged OTA Update from Lenovo:

Lenovo has escalated customer reports of the S000123 upgrade failing on Tab 2 A10-70F tablets to the Lenovo Quality team for a solution.

I will post again when I receive an update.

Gesendet von meinem XT1562 mit Tapatalk
[Android General] chris5s:
Strange, I get good playback at high res...
[Android General] ericDraven77:
Hi!

Thanks for the answer, but I sitll don't really get it. Do I need to root and install XPosed or is it enough to start with the 3rd Point?

And after TWRP I just have to load into recovery and install the zip from there?!
[Android General] chris5s:
You need to use SPFT to flash the contents of the zip.

So download the MM ROM and extract into a folder.

Then follow from step 4 in the first post to use SPFT to flash the contents to the tablet.

The scatter file you need will be in the folder you unzip.

Tick everything and use Download mode as in step 4 of the first post.

Hope this helps.

Peace.
[Android General] free4flight:
I am now rooted with TWRP installed. I want to flash the 6.0 rom, it appears I should do that with SPFT and not TWRP. Do I do a full wipe first in TWRP, then shutdown and do the SPFT thing or will flashing it wipe it automatically. Also, do I need to install the recovery tab again since I just flashed TWRP for 6.0? TIA
[Android General] Jammol:
It's under Gesture features.
[Android General] free4flight:
Ok, I went for it, got MM working, everything works great. But, TWRP could not access internal storage... what is the fix? Tried to do a factory reset, but, could not access internal storage?
[Android General] ericDraven77:
[MENTION=1795513]chris5s[/MENTION] Thank you, i now got it and installed MM succesfully ;)

I don't have the issue with the lockscreen wallpaper.

But my battery seems to drain fast. Am I right that I have to have root access to rename the file? As it doesn't work for me at the moment.
[Android General] chris5s:
Yes you will need to root. It's explained how to do this by zMilwaukee some pages back, you too [MENTION=4266527]free4flight[/MENTION] :good:

Peace

---------- Post added at 10:43 PM ---------- Previous post was at 10:41 PM ----------

On Lollipop, yes. Marshmallow, no...:confused:
[Android General] Jammol:
Wait, isn't the marshmallow build 0921? That's what I have flashed and Gesture Features are there.
[Android General] chris5s:
Pretty sure you're still on Lollipop...check under About tablet...
[Android General] free4flight:
I am rooted...
[Android General] alan081954:
can ya tell how ya did it? i have mm also
[Android General] Jammol:
Omg, lol. Well then call me a monkeys uncle! (What the heck does that even mean??!!).
[Android General] free4flight:
Several guides here but SPFT... flash TWRP SPFT....then flash in TWRP SuperSU....pretty easy really.
[Android General] chris5s:
After having headphones connected, sound won't come out of the device speakers until a reboot.

Seems to think headphones are still connected. Putting the jack in and out a few times doesn't seem to help either.

Anyone else getting this?
[Android General] free4flight:
Is this post still valid and working as I have the problem being that TWRP cannot access data, this the fix? If so, which mm kernel boot.img (there is more than one listed in another post) and where can I find the right userdata.img? Has anything changed or improved with this? thanks
[Android General] alan081954:
could you please explain in a little more detail.
[Android General] bigrammy:
Use [MENTION=5353647]zMILWAUKEE[/MENTION] method boot.img, TWRP and instructions from a few post's back as that is proven to work. :good:

http://xdaforums.com/showpost.php?p=69580395&postcount=1537
[Android General] alan081954:
Thanks
[Android General] Trainingwheels:
A bit off topic here but I'm looking for a good charging cable for this tablet. How can you tell which kind of cable will do a sufficient charge? The cable that came with the tablet in the box is the only cable I found sufficient for the job. Cell phone chargers, other compatible cables, which do fine with data, will take a day and a half to fully charge. It's a bit frustrating to have to rely on one cable. Are there any technical specs that I should look for when choosing another cable?
[Android General] Sparkrite:
You're right, it is off topic.

However any "Charging" cable will have its data pins (pins 3 and 4) shorted out so

that the tablet can recognise that it is connected to a charger and not a data source.

So if you are any way handy, you can make one yourself out of any spare USB lead.
[Android General] Trainingwheels:
Thank you. I will look for instructions to do that.
[Android General] free4flight:
Thanks, but it doesn't have a userdata.img file with it...so where does that come from? Or I don't need that file? Just flash the boot and recovery files he included, reboot and format? This will obviously wipe the internal contents of the tablet and I will have to reflash the MM rom? thanks

---------- Post added at 07:51 PM ---------- Previous post was at 07:47 PM ----------

Bro, in the OP (on first page) there is detailed instructions on how to do each step. Please follow the guide

and if you get stuck, then we will be glad to help, but it is pretty simple. You state you are on MM so you obviously have some experience with flashing in SPFT. yes? And if I am not mistaken, you are asking how to root your device with SPFT and SuperSU, right?
[Android General] bigrammy:
You do not need userdata.img if you follow [MENTION=5353647]zMILWAUKEE[/MENTION] guide.

You only format userdata (Internal sd card) so back up your music photos any app data etc etc
[Android General] free4flight:
Cool, thanks for the help... much appreciated.

---------- Post added at 08:42 PM ---------- Previous post was at 08:32 PM ----------

Ok, so I see no option in twrp to format just userdata so I assume you mean just format, data? Or the complete internal storage? which means I will have to re-install MM rom, correct? Just trying to understand so that I don't have to do unnecessary steps. Thanks

Nevermind, I got it. Thanks
[Android General] ericDraven77:
So now I have root, renamed the file and everything runs perfect. Thanks again [MENTION=1795513]chris5s[/MENTION]

Strange I can't set the Lockscreenwalpaper anymore. So it has to be the root that prevents from setting
[Android General] free4flight:
I have no problem with lockscreen wallpaper and I am rooted... just an FYI
[Android General] chris5s:
Can't we put this under "others", then its not off topic? :D
[Android General] ericDraven77:
[MENTION=4266527]free4flight[/MENTION] do you have TWRP installed? Or did you root any other way?

I installed MM, then I could set LS Wallpaper. Then I installed TWRP and SuperUser for root. Now I can't set Wallpaper anymore.
[Android General] rra1:
I have the same problem.
[Android General] free4flight:
Yes, I installed TRWP 3.0.0
[Android General] zMILWAUKEE:
yeah mine is also doing the same, so, so far we have bugs in the lockscreen wallpapaer (after root and TWRP), the deep sleep or lack there of (fixed by the way), and now the tablet not seeing that the headphones have been unplugged...heck, thats better than most ported Cyanogen or even official Cyanogen roms ive come accross in the past...would anyone know what files are responsible for the headphones, i think the lockscreen is the dumbass launcher 3 lenovo still holds on to for some crazy reason, reminds of samsung and that stupid touch wiz...
[Android General] zMILWAUKEE:
Lock screen wallpaper????????

I reflashed the original boot image for MM and after the tablet encrypted everything the lock screen wallpaper works again, still have the same headphone problem but im reflashing the whole rom without twrp or root...so our problem is the modified boot img.
[Android General] bigrammy:
Lockscreen .pngs portrait and landscape are in /system/etc hence why it may default back to the boats on a full on off reboot/recovery

Not 100% sure why they put them there but I suspect the lack of an /oem or /vendor Partition because a lot of OEM roms place wallpapers there.

The ROM is clearly a port of some kind and judging by the wallpapers a device with lower resolution. :confused:
[Android General] Old faithful:
Look at a cable with the lowest wire gauge number. They tend to be thick and expensive. And the shorter for a given gauge the better.
[Android General] chris5s:
Even after deleting all evidence of the .pngs, those boats persist...:confused:

Not that they're unpleasant on the eye, but...
[Android General] gerardo54:
On my tablet is Android 5.0.1

I want to root with custom recovery, because I want Marshmallow on it

I first rooted with Kingroot and was succesfully. I'm a little confused of the guide(sorry)

What are the next steps after rooting with Kingroot exactly?

Please help.
[Android General] philje123:
It's easier just to flash TWRP recovery using SPFT then flash super user zip in recovery.
[Android General] chris5s:
Root isn't needed if you want to "upgrade" to Marshmallow.

Just grab then file from here, unzip the file and use SPFT to flash the ROM. All files you need for flashing are in the zip, follow step 4 from the first post of this thread.

Peace.
[Android General] bigrammy:
Hmm I am not sure then :confused:

I re flashed to the latest stock v5.x ROM some time back as I was not 100% confident in this 6.0 ROM (It's the wife's tablet and she hates me "messing with it!" :laugh: )

Most the stock wallpapers (apk) seemed to be the wrong size/resolution so probably best to make/find your own wallpapers of the correct size and density if you want it to look nice.

Maybe those boats are just unsinkable hence why they pop up again :laugh:
[Android General] chris5s:
How do you like the last lollipop update (I'm assuming you mean the fixed version of the recent ota screw up by Lenovo?) compared? Did it add any functionality or improvements?