yashsingh1/xdaforums huggingface dataset:
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Thank You!

I downloaded it and will try it tomorrow..Will back up the current version of Lineage OS and will flash this!

I have a problem with Spotify: when the screen turns off ,it stops.It was the same with CM13 . I have put a condition"If Spotify & internet radio are running" the CPU governor is locked at minimum frequency of 1,196 MHz and the same is the maximum frequency." i.e the CPU is at its highest frequency which I decreased from 1,300Mhz to 1,196Mhz.Thus it runs faster.

Hotplug,cfq.

Radio doesn't stop so it's not the media server.

Not FM radio but internet radio.

But actually it is not a huge problem!

Best regards: Jimmy ?
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Go to settings, battery, tap 3 dots menu, tap battery optimization, choose all apps from drop down menu, search Spotify and tap it, choose "don't optimize"...

Starting with Android 6 Doze was introduced, I guess System sends Spotify into doze when screen is off hence it stops working...

You might want to check this modified Spotify out, that's what I'm using, it's ad free with some goodies :) information is in the thread...

https://xdaforums.com/android/apps-games/mod-spotify-dogfood-ad-free-spotify-t3632423

Unfortunately viperOS has the same Bluetooth bug as RR nougat, that's why it's not really usable for me, I'll stay with lineageOS 13 where everything works, even I miss the optimized speed, Substratum and Magisk but as I mainly listen to music or watch videos with this tablet I really need a working Bluetooth connection, seems it picks wrong libraries and therfore plays audio and video about 10x to fast, tried several approaches to fix the problem but no success yet...

Anyways, nice weekend! :highfive:

Edit: [MENTION=8543336]jimmy19742[/MENTION] by the way, dirty flash from RR N to viperOS worked well for me, just wipe system, cache and dalvik and flash ROM and gapps, backup recommended
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Hi ,Sam!

It was really DOZE the reason for my problems with Spotify!So thank You for N-th time.

I backed up Lineage OS with the new TWRP but it could not back up the system partition.

The log says "Cannot create system.img

Skipping......"

Will try again!

Unfortunately, Spotify dogfood installation failed on my Lenovo A3500H.

Will try with a package installer

Wish You have a pleasant evening!?

Best regards
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Well, do you backup system & system image? Cause system is enough, no need for system image... I already did use backup & restore and it worked flawlessly, still I think of switching back to TWRP 3.0.2 as it seems to work perfectly and I had no issues with it, I wrote a little on the TWRP 3.1.1 thread about the "issues"...

As for dogfood, there are detailed instructions on the dogfood thread, haven't checked it on the a3500 but on my OnePlus 3t it works beautifully, never had a single problem, I'll check it out on my lenovo a3500 soon to give feedback...

Edit: by the way, check out this YouTube mod too, in case you missed it, it's adfree with background playback enabled, something you'll never want to miss :)

Check especially the 2nd post, it's for either magisk or SuperSU with installer script, regularly updated, just awesome...

https://xdaforums.com/android/apps-games/app-iytbp-injected-youtube-background-t3560900
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
[MENTION=8543336]jimmy19742[/MENTION]

I told you about liquid porting already I believe, here's a link to their github with another TWRP 3.1.1-4, last number stands for the device specific revision....

https://liquidporting.github.io/twrp/

Choose Lenovo Idea Tab A7-50

Edit: something seems wrong here, says recovery is too big and won't flash properly, if I find any solution I'll let you know...
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Thank You,Sam!

Thank You for your efforts to fix the issue as well???
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Hi Sam! It's been a while but I switched to RR 5.8.4 and it's pretty sleek.

I tested viperOS too.Bluetoth don't work on both but on Viber OS the software buttons on the bottom were missing.

I also will reverse TWRP to 3.0.3.

Thought it's beta 3 , RR 5.8.4 is faster than Lineage OS 13!

Have you made any settings in zRAM feature?

I set it up to 300MB and my device is faster now.

:)

Best regards: Jimmy!?
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Hey Jimmy,

RR 5.8.4 is just great, finally Substratum on this old device :) unfortunately I'm stuck with lineageOS 13 cause without a proper Bluetooth connection the device is pretty much useless to me...

I also switched back to TWRP 3.0.2 because I couldn't see any substantial improvements on TWRP 3.1, also the bugs are just annoying and 3.0.2 works just fine in any aspect...

Sorry can't give you much advice regarding nougat on this device, have a nice one :highfive:
[Lenovo A3500 Guides, News, & Discussion] Bukamelon:
Hello sir this Rom rr 8.5.4 is great but is there a gps_fix.zip (patch) for rr 8.5.4 my tablet lenovo a3500-h can't find any sattelit I tried several gps_fix from Google store? Thx in advance for your help...

Best regards :o

Bukamelon
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Yeah, the original author of this ROM posted a GPS patch along with the ROM, also a camera patch/fix is available...

GPS fix

Camera fix

Flash in recovery, make a backup, just in case you're not satisfied with the results, I'm not aware of any uninstalling methods..
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Hi ,Sam.

Just flashed both fixes.

GPS fix gave error :"META INF can't be found"

Camera fix is okay and the photos are with good quality

Hope it was useful!

Best regards!??

Edit

GPS 's META INF does miss from the fix.

Just check in details the zip
[Lenovo A3500 Guides, News, & Discussion] Bukamelon:
Wow you are great sir! I download this two fixes thx, but only camera_fix now flashed and it works - the TMC.zip like corrupt if I wanna flash I get error on TWRP maybe got corrupt on upload to server? I don't now thx again for your patience...

With regards Bukalemon

Sent from Lenovo a3500 with 7.1.2
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Check this please, it should work...

GPS fix2 nougat
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Flashed successfully,works fine!

Thanks,Sam!
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Just linking stuff, not my work at all... :)

Happy to help and for everyone who tries to keep this "old lady" alive and up-to-date...
[Lenovo A3500 Guides, News, & Discussion] Bukamelon:
Now I tried the 2nd one

What amazing result : 8/12 satellite and fix in 2s :D

Maybenot your work but your help is grandios

Thx very very well for quick response with my best wishes Bukamelon

Sent from Happy with Lenovo a3500 & Android 7.1.2:cool:
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Without You we would be lost ,Sam!

Muchas Gracias!

Keep the good stuff coming!

Can't wait for RR 5.9.4

Respect & Cheers!???
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Yeah, that's the good thing about this community :) sharing & caring...

If Oreo will ever arrive to this device it's going to take a while, anyways I'd be more than happy with Nougat but a critical feature (Bluetooth) is missing so I stay with lineageOS 13, which works great for me, I'm really thankful for this considering the long years without any custom software, sure I'd love to use Nougat but Marshmallow is fine too for the time being...

By the way, I had a chat today with Khaos from Liquid Porting and reported that their TWRP 3.1.1-4 cannot be flashed (at least on the a7 40) because "image to big for recovery partition" issue, he gave me some hints which wasn't helping in the end but he also said to have a look himself and hopefully I can test stuff for him, if all is well we could maybe have a fully functional up-to-date TWRP for our device soon, let's see - I keep you notified..

Nice weekend everyone! :highfive:
[Lenovo A3500 Guides, News, & Discussion] EPa:
Hi Sam,

thanks for all the info and links. I 've a few questions. I have my A3500-H running 4.4.2. It is rooted and has the (touch) TWRP recovery 2.8.0.0.

After reading your posts I decided to go for lineageOS 13 (downloaded from the link you provided above). Got gapps ready too.

1) can I use TWRP 2.8.0.0 to flash it ?

2) in case the answer to 1 is no, what do I do to install TWRP 3.0.2 ? Install and use the official TWRP app?

3) I suppose I don't need any of the fixes (audio, GPS, Bluetooth) you are mentioning above because they were for cm13, right?

Thanks for everything
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
First of all do backup your current setup with the TWRP already installed, of course you can try it with the older version of TWRP but TWRP 3.0.2 is recommended and works absolutely flawlessly, in case you want to upgrade your recovery, download TWRP 3.0.2 image and boot up TWRP again, now click install, then press the button "install image" and choose the TWRP 3.0.2 image, swipe to flash, choose recovery partition, swipe again and go to TWRP's reboot option, reboot recovery...

Now you should have TWRP 3.0.2 installed...

(in case you already backed up your current working setup) you can go to TWRP advanced wipe and tick all boxes exept "internal storage", wipe it...

Flash ROM and suitable GApps (I use opengapps.org, arm, android 6, pico), if you have Sound issues you can simply flash the fix at any later time but if I remember correctly it's only for cm13, lineageOS should be fine though...

I already wrote a instruction on how to flash SuperSU, there's a need to adjust the installation of the superSU zip to force a non-systemlessly installation as it will bootloop otherwise, I link it to there...

https://xdaforums.com/android/development/guide-lenovo-a3500-h-t2879208/post74004759
[Lenovo A3500 Guides, News, & Discussion] EPa:
Installed TWRP 3.0.2 (image provided in the above posts) using the official app.

Rebooted. Got into recovery. Started the process. Used the standard "factory reset" from menu "wipe". Said something about not finding /cache and stuck.

Shutdown and reboot to recovery. Try to flash lineageOS, says it can't mount /system (!).

Trying repair file system, reports size of /system is 0 (!) and repair fails.

Then I choose to change it, select ext4 (which already was), it formats it, succeeds and updates partition details.

Then try repair, it succeeds.

Then go on to flash lineageOS and it is stuck at the beginning just after the message

"detected filesystem ext4 for /dev/block/mmcblk0p5" for at least 10 minutes..

..just now it repeated the same message..

It is not frozen or hung, the progress bar flashes from left to right but doesn't fill up or anything.

...

As I am writing this, it finished!

Nevertheless, I will still post this, so that others can be warned that,

*** that f*cker progress bar doesn't fill up or give any sign of progress ***

so be patient!

---------- Post added at 05:12 PM ---------- Previous post was at 05:09 PM ----------

Sam thanks for your answer, I just saw this now, after my previous message. I am now booted to lineageOS, setting things up.

Thanks again
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
lol :laugh: yeah, that's right, the progress bar sucks and let's you think it's stuck... But it will succeed in the end

-----------

By the way, I never use factory reset when changing ROMs, safest way is definitely to use TWRP's advanced wipe option to wipe all but internal storage..
[Lenovo A3500 Guides, News, & Discussion] EPa:
Trying to use Magisk 14.0 for rooting (TWRP 3.0.2, LineageOS 13). Anyone done it?

In my case flashing it fails with

"! Unable to detect boot image"

Any clues?
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Copy the boot.img from the rom zip folder, install latest magisk manager apk and open it, hit install, choose "patch boot image", point it to the location where boot.img was saved before, let magisk manager patch the boot image "externally", (maybe needs 2 or 3 attempts before successful) it will store the new patched boot in /MagiskManager, go to TWRP and flash the patched boot image from there by using "install image" (boot partition)...

It's working great except Titanium Backup won't recognize "root" and therefore will be not usable, as I depend on it to function I choose SuperSU...

-> use stable Magisk 14.0 to avoid issues, Magisk beta did not work well for me at least...

Edit: don't get me wrong, I'm happy to help but all of your questions could have been solved by using search and reading, I already explained (almost) everything detailed...
[Lenovo A3500 Guides, News, & Discussion] EPa:
I seem to have a problem with GPS not fixing a single satellite.

Reading above it seems the problems and the posted fix concern nougat..

Sam, can you confirm you have no problems with GPS on your out of the box LineageOS 13? Or have you done something about it (I read the whole thread, hope I didn't miss it) ?
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Sorry, I don't use GPS at all but I can check later when being home again...

Edit: [MENTION=1622582]EPa[/MENTION] you can still backup and check if the GPS fix does work for lineageOS 13, in case of issues restore the backup...

In case it works please report it
[Lenovo A3500 Guides, News, & Discussion] EPa:
Thanks, I appreciate it..
[Lenovo A3500 Guides, News, & Discussion] EPa:
Tried flashing the fixes.

Both fixes (post #46 and #111, the second one needing some work to turn into a flashable zip) don't work on LineageOS 13.

They actually make matters worse since with them flashed, my (offline) navigation program reports that gps is disconnected, while before it just searched on and on..

Tested also with Google maps and the LineageOS included YGPS app, left the device under clear sky for at least 15 minutes, nothing.

[MENTION=7125933]Sam Nakamura[/MENTION] I'd appreciate it if you could test and report, and even more if you could look for a fix..

Otherwise I can see myself trying the nougat roms since I need GPS more than Bluetooth functionality.

In any case thanks.
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
It's not Sam but me Jimmy

My Lenovo is A 3500-H

You can install Lineage OS with your current recovery.IThe ROM works smoothly but I recommend you Resurrection Remix 5.8.4 which is based on Android 7.1.2..It also works great.Known issue-Bluetooth doesn't work and that's all.

You can update your TWRP at any time following these steps ( Hat off to Sam)

1)BOOT IN RECOVERY

2)SELECT "INSTALL"

3THEN SELECT"IMAGE"

4)Navigate to destination folder of TWRP3.0.2.img

5)THEN SELECT THE PARTITION "RECOVERY"

6)SWIPE RIGHT

7VOILA-YOU ARE DONE

I'll post some screenshots from my Lenovo A 3500H in a while

---------- Post added at 03:23 AM ---------- Previous post was at 03:16 AM ----------

I didn't see that Sam had answered !

Sorry!
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
That RR 5.8.4
[Lenovo A3500 Guides, News, & Discussion] EPa:
Jimmy thanks for the input.

I have already installed TWRP 3.0.2 and if this GPS problem can't be fixed in LineageOS 13 I think I'll go with your suggestion.

Thanks.
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
In case I stumble across any fix regarding this issue I'll report it to here but as I never use GPS on this device I won't invest too much time...

Switching to RR 5.8.4 for GPS seems to be a good idea
[Lenovo A3500 Guides, News, & Discussion] EPa:
Yes thank you.

And could you please run a quick test and report if you also have an issue with GPS on LineageOS 13?
[Lenovo A3500 Guides, News, & Discussion] mihael zzzzz:
Crdroid,xoasp

Xosp

https://drive.google.com/file/d/1R7P_zeSt5KO9geHqWCzLKKTzoeR1sroC/view

Crdroid

https://drive.google.com/file/d/10qM5emaamMl8b8QAHU0evPJgRa1MKxvt/view

I will have test.
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Is it a different XOSP than from 4pda.ru?

Is Crdroid from you, did you port it?

Thanks for sharing... :highfive:
[Lenovo A3500 Guides, News, & Discussion] mihael zzzzz:
Yes its my port.But I can not fix the camcorder and other bugs.
[Lenovo A3500 Guides, News, & Discussion] wujekbrezniew:
Funny part.

Works with Kiano Elegance 8 (of course with full functionality of CWM recovery), the other mt6582 device, but with some graphical bugs (something like crt signal problems).
[Lenovo A3500 Guides, News, & Discussion] mihael zzzzz:
New my ports https://xdaforums.com/android/development/aex-n-viper-n-lineage14-port-t3711287
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
To Sam's Nakamura.

Hi Sam! I lost root privilege awhile ago so I installed Magisk manager but it didn't work till I converted to SYSTEMLESS .Then I got the boot image patched , flashed it but when I tried to flash Magisk 14.0 ,got the message'BOOT IMAGE NOT FOUND",

Got the same message when flashing SuperSU.

Where might the problem be?

Thank You in Advance!

Also I'm constantly out of space though I have a few applications installed and my emmc is 16GB.Applyinga screenshot.

Edit:Look how much space the system files occupy (impossible) and how much the applications.

Maybe I should flash the original image back to fix the space issue?
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
The issue is that due to the porting of the kernel it's somewhat messed up and neither SuperSU nor Magisk will be able to just patch this kernel, as I already explained (several times) SuperSU will only work in system mode, not systemless (use TWRP's terminal emulator and enter the according command lines to force system mode as the SuperSU somehow wrongly decides to use systemless mode) and magisk will only work if you install magisk manager apk (latest probably) press install and choose patch boot image (of course you need to extract the boot image first from the rom zip) after its being patched you can flash it in twrp (install image, choose boot partition), I actually wrote all the information already down, you should be able to find the respective posts by searching the last few pages...

I have no idea what apps you installed but you can check with settings -> apps or you use any storage analytics app from store and decide what to uninstall, I use a 32GB SD CARD in addition and never had such problems..

Good luck :)
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Hi Sam, of course I followed all these steps about Magisk! Even dirty reflashed the ROM!

.However I had no success in rooting with SuperSU that's why I switched to SYSTEMLESS

I know the code you provided for a SYSTEMLY ROM but I changed the value to to TRUE!

High five!

Didn't mean to make you bored.I memorize well + plus selfstudy LINUX.

Kind regards!

Edit: Magisk can't be installed without Magisk manager.Only via it.
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Thanks for sharing, I just saw your post on 4pda.ru :highfive: you're probably the most active person porting ROMs at the moment and since quite a while, I'm still on your lineageOS 13 because of the haunted Bluetooth on all nougat ROMs, otherwise they work just flawlessly, anyways I'm a big fan of all you did for this old low end device, you actually still kept me from buying a new one :p nice to see you around here..

---------- Post added at 07:02 PM ---------- Previous post was at 06:59 PM ----------

Don't take me too seriously, didn't meant to be harsh or anything :) I actually enjoy your presence as you probably know :good:

So it's working now?
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Actually I'm going to flash to the the original boot image in a couple of minutes because a lot of applications like Chrome and many others fail to start .

Probably will root it with KINGROOT 5.4.0 when it will come out .It might be out already though!

Regards!
[Lenovo A3500 Guides, News, & Discussion] mihael zzzzz:
try this bt fix link https://4pda.ru/forum/index.php?s=&showtopic=671898&view=findpost&p=67534954 or https://drive.google.com/open?id=1ZkXOhvJvxgAsp6GXHj1kF1ptNGaplN9_
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
You're my personal hero now :victory: it worked on first attempt, finally nougat, Substratum, magisk - yeah baby!

Is it actually all right for you when we share your stuff here? just thought people should know about it, this is a largely unsupported device outside the Russian forums...

If not just say a thing...
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Congrats ,Sam! You finally got the so disarmed ROM!7.12 Viper OS

Thanks, Michael!

Sam , would like to ask you to look at this images ( during your free time while listening via your Bluetooth speakers ??)

And if the ROM is stable would you upload in Google drive and share it!

Here are the images
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
Failed to upload it in the previous post
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
It can't upload the images!

Sorry!

I'll explain':,switched back to SYSTEMLY

Flashed SuperSU

Boot patcher can't find the boot.img again.

So if this new ROM is prerooted, I'm eager to try it!

But don't be in a hurry!

Enjoy the benefits of Nougat!:laugh:
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
Careful, you have misspelling in the command line, it's like this :

echo SYSTEMLESS=false>> /data/.supersu

(if done correctly this will not produce any output)

Go ahead and flash latest available SuperSU

This will install SuperSU in system mode, it's not possible to patch the kernel for a systemless installation on our device, so for a successful installation of SuperSU it's mandatory to force the boot image patcher to do it in system mode, it somehow falsely decides to do it systemlessly, which won't work...

I would (dirty) flash the ROM before flashing SuperSU, just to be sure you didn't mess up the kernel with the failed attempts...
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
I

I followed your advice but it didn't work for me.Tried Magisk again but the same.

Anyway, it doesn't worry me at all.I mostly listen to music on this tablet.

But Sam , could you tell me two things:

1)How do I find the buttons on extended mode (because I couldn't find them on ViperOS

2)What were Your impressions of ViperOS?It also runs 7.1.2

Thank You in Advance!
[Lenovo A3500 Guides, News, & Discussion] Sam Nakamura:
No idea about viperOS really, haven't checked it thoroughly but I assume you mean the the problem that the software buttons / navigation bar is missing on first boot?

Just activate them in the ROM settings, that's what I did when I booted it once to check Bluetooth, this was before the fix arrived so I ditched it immediately but I remember the missing navigation bar...

Regarding supersu, before you attempt to flash the supersu zip carefully type

echo SYSTEMLESS=false>> /data/.supersu

And hit enter, now flash supersu zip...

Careful as there's on space between

echo SYSTEMLESS=false>>(space)/data/.supersu

Also flash the ROM again before starting to root, this will restore kernel and system to its default, you won't lose data...

Which viperOS version (or ROM) do you attempt to root with magisk? I could patch the kernel for you and upload it, so you would only have to flash the boot.img with TWRP and install magisk manager apk...
[Lenovo A3500 Guides, News, & Discussion] jimmy19742:
THANK YOU,SAM!

I'm still with RR 5.8.4 and will try now to force it back again to SYSTEMLY. I've been trying to root it with Magisk so I switched to SYSTEMLESS.Though it patched the boot image and I replaced the default one via TWRP I could not get root I'm curious if ViperOS is better but I doubt it.There are a lot of good things in RR

But it's not a huge problem.

THANK YOU ONCE AGAIN!

Have a nice day!?