yashsingh1/xdaforums huggingface dataset:
[Android General] Leandromartignone:
hola realize estos pasos y mi tablet quedo en logo.

Es una a5500f

a442_000_029_150408_row

mtk8121.

Gracias

---------- Post added at 11:14 PM ---------- Previous post was at 11:00 PM ----------

Hello, follow these steps and my tablet remains a logo.

What steps can I take to recover it.

Is a A5500f

Mtk 8121

a5500f_a442_000_029_150404_row

Thank you
[Android General] uZveruga:
You don't need these steps. This was written for the person who installed the firmware, but rebooted without installing the fix. He got "wrong kernel" error mesage after that.

To help you, please answer this questions:

1 - did the tablet work properly before?

2 - what did you do, after which it began to show only logo?

3 - what did you want / want to do now?
[Android General] Leandromartignone:
If it worked well.

I want to leave it with android 4.4

Can be upgraded to a newer version?

Thanks
[Android General] uZveruga:
I don't understand how it is broke.

All was ok, until you flashed "boot.img" from that post? But why did you do that?

Yes. You can flash crdroid (with android 7) for example.
[Android General] Leandromartignone:
Sorry first I did this:

Root tablet

First Of all with our tablet we need ROOT

the only app that i tried and can Root The Tablet is

KINGO ROOT

DOWNLOAD

USB DRIVER

DOWNLOAD

here are the steps to do this

1.-Enable Debugg Mode inyout tablet (settings - about tablet- 7 tabs on build Number-enable usb debug )

2.- Download the Drivers

3.- Connect yout Tabler with your USB cable And Install it with the drivers

4.- Download=>Install==> Launch the KINGO ROOT APP ( LINK above)

5.- Hit ROOT and wait till The magic Happend ..

6.-Enjoy

then it was constantly restarting

And later I did this

After that you should be able to boot into TWRP and flash "Fix".

Step 1: Download this:

https://mega.nz/file/OHJigICI#J2H0Us...80EAewQclECpmU - SP_Flash_Tool_with_scatter_boot_recovery.zip

Step 2: Restoring boot.img

1 - run SP Flash Tool v5.1708

2 - after "Scatter-loading File" press "choose" button and select "MT6582_scatter_LVP6-WIFI-ROW.1.013.00.txt"

3 - press Ctrl + Alt + V.

4 - in main menu check "Window" -> "Write Memory".

5 - switch to Write Memory tab

6 - in "File path" select a path to "boot.img" file. (it's inside "SP Flash Tool v5.1708" folder)

7 - in "Begin Address (HEX)" put 0x3180000

It should look like this:

https://xdaforums.com/att...1&d=1591430510

The tablet must be turned off and usb cable is disconnected.

8 - press the "Write Memory" button and connect usb cable.

Dont push any tablet buttons. You should see that SP Flash Tool is working. It will show a window with a green circle when finished.

Step 3: Flashing

Now you should be able to use Volume Up + Power and boot to "recovery".

Boot to TWRP and flash "FIX_START_RR_5.8.5_A5500F" and "gapps" from the first archive.

Reboot, wait for long first load and it should be working.

PS: I use windows version, don't know about linux. On linux you need to find a working version of SP Flash Tool, get these files:

MT6582_scatter_LVP6-WIFI-ROW.1.013.00.txt

boot.img

recovery.img

and use it the same way.

I was unable to perform step 3.

And it was a logo.

Thanks.

---------- Post added at 10:51 PM ---------- Previous post was at 10:50 PM ----------

What steps can I take?

Thank you very much.
[Android General] uZveruga:
Because there was no TWRP recovery on your tablet.

So kingoroot killed it... Ок.

I assume that your installed firmware was the latest official with Android 4.4.2.

That means, that if we flash the "boot.img" from it, it will possibly solve the problem and the old firmware should be working again.

1) Download: (SPFlashTool if you need it)

https://mega.nz/file/yDBFwSBY#L1ZtChYDNfXBSSQwMMzGSFzxaWbMcYaZOHPYIRAc7Us - SPFlashTool v5.1708_with_scatter_LenovoA5500F.zip

2) Download: (boot.img stock 4.4.2)

https://mega.nz/file/POY3GCQI#xVYmZceb5Q3plUQjYwtBVO87ZufwVdrTIwKUJQbGhHs - boot.img_Lenovo_A5500F_android4.4.2_stock.zip

3) Download: (recovery.img with TWRP 3.0.2 for A5500F)

https://mega.nz/file/qHZl0YRI#1Ri8Q4pzmSpVw3e2ESG0cGx-DiSR-cOdoPvC4D9sQdc - TWRP 3.0.2 for A5500F.zip

4) Extract all that zip's.

5) As described here: https://xdaforums.com/showpost.php?p=82759455&postcount=92

1 - Flash boot.img. In the field "Begin Address (HEX)" put 0x3180000

2 - Flash recovery.img. In the field "Begin Address (HEX)" put 0x4180000

6) It should be working now.

7) I highly recommend you to make a backup of nvram partition:

1 - Turn tablet off.

2 - use Volume Up + Power, select "recovery" and boot into it.

3 - Backup -> select "nvram (5MB)" and swipe to backup.

The backup will be inside TWRP folder.
[Android General] Leandromartignone:
Excellent.

Thank for your attention.
[Android General] Leandromartignone:
How do I do these steps? I only have one place to enter.

1 - Flash boot.img. In the field "Begin Address (HEX)" put 0x3180000

2 - Flash recovery.img. In the field "Begin Address (HEX)" put 0x4180000

https://xdaforums.com/attachment.php?attachmentid=5034707&stc=1&d=1591430510
[Android General] uZveruga:
You need to do it two times. ;)

First flash the boot.img with 0x3180000. Then pull off usb cable from tablet.

Second flash recovery.img with 0x4180000
[Android General] Leandromartignone:
:bueno:
[Android General] gkhan136:
Hı everyone. İ am using Lineage Os. İ think sound is a bit low. İ flashed Dolby Atmosferi but it is not stable. For example on youtube ıf İ dont tap twice to foward video, sound is low but if İ tap twice sound is getting higher as İ want. Other video platforms sometimes have same problem sometimes dont. So is there the any exact solution? Thank you.
[Android General] lmemperador:
[MENTION=5488229]uZveruga[/MENTION]

great news man, thanks in advance, can't wait to try those new roms

so after trying Resurrection Remix Lineage OS and crdroid ... you prefer crdroid right? ok i will try that one the first.

thanks so much , you have injected new life in this old tablet

---------- Post added at 12:59 AM ---------- Previous post was at 12:58 AM ----------

[MENTION=5448388]gkhan136[/MENTION]

maybe viper 4 android works
[Android General] Leandromartignone:
Thank

Thanks for the help with my tablet. Already revived.

Now another help, as I do to update software.

---------- Post added at 02:28 AM ---------- Previous post was at 02:25 AM ----------

How can I update to a newer android?

Thank you
[Android General] lmemperador:
just follow instructions in back pages

i tried crdroid with gapps and without gapps and it is stucked at starting in this way... it keeps saying insert sim card then it seems to allow me to choose a fresh install or restore , but when i choose whatever it keeps saying insert sim card and go back to start page again , i can skip the sim card stuff but i can't go ahead of these options :(

i will try LOS now. with gapps 7.1 pico arm as before, it seems to start ok. it shows the same screens as before for the sim card but now it works and i can continue entering my wifi and all the stuff, all ok now.

i will test it deeply and i will comment soon guys, thanks for everything again [MENTION=5488229]uZveruga[/MENTION]
[Android General] uZveruga:
That's strange. I skipped the "insert sim card" step on crdroid without any problems.

Congrats! In fact you can install any firmware for H/HW versions on Lenovo A5500-F, but you need to always apply FIX_START_RR_5.8.5_A5500F.zip, without rebooting, after installing the main firmware. Otherwise the firmware won't start.

Or you can replace file "boot.img" in any firmware for H/HW with "boot.img" from "FIX_START_RR_5.8.5_A5500F.zip", and it turns into the firmware for A5500F.
[Android General] uZveruga:
I am confused that kingoroot was failed to get root. The flash memory may be worn out.

In this case, you risk that the new firmware will not work, and it will be impossible to return to the old one. After that the trash can will be only option.

You can take a chance if you want, but there are no guarantees.
[Android General] lmemperador:
yes it is very strange i flashed crdroid several times with and without gapps and nothing , the same thing , also it restart the tablet in a kind of soft reset mode from time to time pressing skipping button. yeah strange no idea .

about LOS , all ok , all i use seems to work, stable and with enough speed for 1 gb of ram only... i am using the integrated root in developer settings but i suppose i can disable it and flash magisk right? i want to install viper 4 android and some stuff from there.

hehe thanks again master you did it. i didnt try before you but of course like in old days with the correct kernel (inside the boot.img) for the device and distribution of android ... some roms can work :)
[Android General] uZveruga:
Right. ;)
[Android General] lmemperador:
thanks a lot

finally without installing magisk i installed viper and sound seems to be ok

i flashed this in twrp

https://www.dropbox.com/s/0oc5n3snuic7j85/ViPER4Android_2.5.0.5_guitardedhero.zip?dl=0
[Android General] lmemperador:
well after days of testing of LOS in this tablet, i must say it is ok for daily use except one thing,

it was already said by [MENTION=5488229]uZveruga[/MENTION]

when device goes to sleep it is not reconecting again when we activate the screen again. i have to go to the wifi section in settings and reconect manually. this is the only problem i see in LOS

anyone found a fix for this . maybe in 4pda site or with some app , or editing wifi scaning interval ....i dont know how to fix it :(

maybe i will try resurrection remix since crdroid failed to start first configuration in my device
[Android General] uZveruga:
The wifi reconnect problem is because of kernel - that "boot.img" file from fix. And since there are no other fixes - there is no solution.

Maybe Tasker will help, but I need more time to learn, how to use it.
[Android General] lmemperador:
thank you, yeah i supossed it is because of the kernel, the only solution i found is installing one app called wifi connect i could force wifi on all the time. .. i am not sure it is doing it lol but i think it does. anyway ...yeah i know it is not the best . https://play.google.com/store/apps/details?id=com.devfred.wificonnect&hl=en_US

tasker, i remember that super app , try macrodroid if tasker is more difficult , i know about both, anyway i moved to resurection remix now . it seems that problem is not here so maybe it is rom related and not about kernel

not sure if wifi is always on , i set in settings wifi off when screen off but...at least the tablet doesnt lose the conection like in LOS. i will update with more testing :)
[Android General] lmemperador:
hi, i fixed the wifi issue . just install macrodroid and import the macro attacched to this post. then configure the wifi sentences with your own ssid wifi. press the sentences then press setup or config and then choose your ssid wifi . thats all

in sumary the macro does the next fuction ... it disables wifi 3 minutes after screen is off. and it enables wifi and try to connect in a loop to the ssid wifi configured when screen is on. the only thing i mis there is a way to stop the loop if it doesnt connect ... lets say in 5 loops but it is easy to add that, else ask me (hehe yeah i forgot that)

you can play with the values to fit even more your needs. hope you like it. have a nice day

MACRODROID --> https://play.google.com/store/apps/details?id=com.arlosoft.macrodroid&hl=es

*************

about Resurection remix ROM ...i think it is more optimized for our tablets, i feel more speed , responsiveness, more free memory and it is very customizable.

i must say that i all the roms i test i freeze all the apps i dont want with titanium and i try to optimize all stuff like i did with all my devices in the past. i have my tricks, i suppose you all have. and my comments are about the roms "optimized", not just out of the box. :p

cheers
[Android General] xefesilva:
Hi!

Thanks uZveruga, per your instructions i successfully installed Lineage 14.1 on my A5500-F.

Weirdly enough i'm not having any connectivity issues on my A5500-F. Always stays connected to my AP's, on turn-on and wake-up.

What really is bothering me is that youtube is now severely lagging at 720p 60FPS. With 4.4.2 kitkat it played true full-hd 60 FPS buttery smooth. Why is this happening? Lack of hardware acceleration? I don't like using newpipe, without login my suggestions are crap. Can i login on youtube account in newpipe? I didn't find how.

thanks.
[Android General] btsy332:
I recently recovered my old A5500-F and would like to use it for some light browsing(reddit mostly), youtube, light productivity(OneNote, Google Drive+Docs) and pdf/epub viewing. I'd prefer a newer system as there are some newer apps I'd like to run on it that won't run on 4.4.2(Discord for example) so a newer Android version is a plus. What is the latest version of android I could run on this tablet, and what rom would you recommend for it? If not which of the ones floating around recently(RR, LOS, crdroid) seems to be the most fluid and stable?

Thanks for putting in the work into this. Its allowing me to repurpose an old tablet and give it a new life(being a DM tool).
[Android General] uZveruga:
You can use this manual to flash Resurrection Remix 5.8.5:

https://xdaforums.com/showpost.php?p=82709129&postcount=83

Just don't reboot on Step 9, without flashing all three zip's in correct sequence.

And finally- how to change language to English:

https://xdaforums.com/showpost.php?p=82766725&postcount=98
[Android General] 111ron:
Hi,

Could you help me please, I stuck with the same problem, luckily I found your instruction but, after I press the "Write Memory" tab, it gives me the message.

CHIP TYPE NOT match!

scatter chip type:135

target chip type: 155

What should I do now?

The tablet is Lenovo Tab A8-50F with MT6582
[Android General] uZveruga:
Wrong scatter file. Maybe your tablet is not A5500-F or H/HV?
[Android General] AndreiOR:
Very very lost

So I've read everything in this post to intall a cutom ROM but think I got lost in all this bugs and "install this and that" thing. I'm so lost that can't even start the process, don't know what to download first or even what ROM, just very very lost.

I would be FOREVER grateful with the soul of whoever wants to help this poor dumb and lost dude :angel:

Thanks in advance :good:
[Android General] uZveruga:
Hi.

1) Use this manual: https://xdaforums.com/showpost.php?p=82709129&postcount=83

If the sound suits you, you can ignore the "UPDATE" part in the end.

2) After all, switch language from default Russian to English:

https://xdaforums.com/showpost.php?p=82766725&postcount=98
[Android General] AndreiOR:
Thanks! I'll try this ROM, but if I want to try Lineage, is it possible to follow the same steps? And can I switch languages from Russian or English to Spanish? :confused:
[Android General] uZveruga:
https://xdaforums.com/showpost.php?p=82794437&postcount=102 - yes.

Yes, you can change to any language, they are in the same list.
[Android General] YamaCon:
Because this thread is so old already, I f*cked up trying to flash LOS with an too old TWRP (2.8.0.0) that gives an error. I learned that I need at least 3.0.2. But can't get it on my tablet. ADB works, but fastboot does not. Thhe SPFlash tool says my mediatek is incompatible. And in the proces of wiping I wiped my stock backup...

Is there a stock firmware for downmload somewhere, that can be falshed using TWRP 2.8.0.0? If so, I could start over completely.
[Android General] uZveruga:
Are you sure that your tablet model is correct?

https://rootmydevice.com/download-lenovo-stock-firmware/ - put "5500" in search field. There are stock firmwares for A5500H, A5500F, A5500HV with a manual how to flash it.

But it uses Flash tool.
[Android General] YamaCon:
As a fact, I am not (anymore). The stock formwares all show "A5500F_MT6582" in the name, but the sticker on my device says "A5500F_MT60055". Maybe I should expand my search with this.

I could sideload the newer TWRP version, but the device does not get recognized by fastboot, while it does by adb...
[Android General] YamaCon:
Well, I re-downloaded the firmware where you pointed me to at rootmydevice, and it seems a different version. This one says MT6582, while the previous one I found says MT6735... The flashtool is running as we speak ;-)
[Android General] uZveruga:
MT6582 - my F version.
[Android General] YamaCon:
Yes. I have LOS running, and currently trying RR 5.8.5. I think I prefer the latter.

Both have Android 7.1.2. I guess that's the most modern one we can get on these devices?

Thanks for pointing me in the right direction!
[Android General] uZveruga:
Yes, the 7.1.2 Android is the lastest available.
[Android General] OrkedB:
Dear uZveruga, I did follow your manual to update from 4.4.2 to 7.1.2 at it was smooth and working fine. Thank you for this.

Unfortunately the tablet seems to be more lazy with 7.1.2 when using a web browser (does not matter whether it is Chrome, Opera or Firefox) what is a little bit frustrating to me (I have to wait quite long time to see the first requested page and Videos in full screen is almost not possible to see ... . Therefore I would like to go back to original FW. Unfortunately during time being i lost the backup.

When I tried do download and use the 4.4.2 ROM from the same source shared by you i got this message from TWRP:

This GApps pkg is for Android 4.4.x ONLY. Please download the correct version for your ROM: 7.1.2 (SDK 25).

Could you please help?
[Android General] uZveruga:
You don't need to manually install gapps, because they are already installed in a stock rom.

https://stockromfiles.com/lenovo-tab-a8-50-a5500f-stock-rom/ - just download 4.4.2 firmware from here, and folow their instructions, how to install it.

As for me, I prefer version 7, because the 4 version of android is too old, and a lot of software is not support it now.

Yes the browser is slow, and the youtube video above 720x30fps is laggy, but this tablet was manufactured 7 years ago and have only 1GB RAM. So there is no miracles.
[Android General] OrkedB:
Thank you for fast reaction. I agree with you, We should not expect miracles. :-) Anyway, I tried to follow the instructions under the link you shared on two PCs, but in both cases USB keeps connecting and disconnecting in a circle and the download does not start. I was close to break the tablet by hitting it. If you have any idea what could be wrong .... . If not, does not matter, I appreciate your effort anyway. Thank you again.
[Android General] uZveruga:
The tablet should be powered off, when you insert usb cable.

1) press and don't release the power button for a 5-10 seconds, until it fully power off.

2) release button, insert usb cable, and it should be start flashing process

(If not, there is solutions too, but first try what I wrote above)
[Android General] OrkedB:
I exactly did what you describe. I also tried to power off the tablet from TWRP menu. The tablet is switched off, i connect the USB cable and hear the WIN sound of USB enumeration. It takes approx. 7s then it release the USB (disconnect) and the tablet shows Lenovo welcome screen for a while (3s) after another 4s it enumerate the USB again, still in a circle. The driver is installed properly. Ufff :-)
[Android General] uZveruga:
1) try to change the usb cable or connect it to other usb port on PC

2) if it not help - try to flash "boot.img" from the original firmware.

1) get stock boot.img from here: https://mega.nz/file/POY3GCQI#xVYmZceb5Q3plUQjYwtBVO87ZufwVdrTIwKUJQbGhHs

and extract it.

2) put this "boot.img" on a tablet sdcard or tablet internal memory.

There is a lot of ways to do it.

For example:

- boot tablet to TWRP

- select "Mount" - "Data" - and press button "Mount USB Storage"

The tablet internal memory will be mounted on your PC. Copy file "boot.img" there.

3) When done with copying, press "Unmount" and back button.

4) Select "Install" - "Install image".

Navigate to "boot.img" and select it.

In the "Select partition" select "Boot"

Swipe to confirm it and wait until it write "[IMAGE FLASH COMPLETED]".

Press "Reboot system"

After that power off your tablet with a long pressed button and try to flash stock firmware with SP Flash Tool.

If it will not work too - you can flash the stock firmware manually, file by file, as you did with "boot.img" above. Just select the correct partitions, and don't change recovery.

Or you can flash back the 7-th android with the help of TWRP.
[Android General] OrkedB:
It ended exactly like this. :-) Anyway, thank you for your support.
[Android General] uZveruga:
That's strange. If you have a working TWRP, you don't need "SP Flash Tool" at all.

You can try CRDroid for example: (there is a link below)

https://xdaforums.com/t/all-about-lenovo-a5500-f.3118363/page-6#post-82889569

Just dont's forget to wipe (via TWRP) - Cache, Data, System, Dalvik Art cache, before installing.
[Android General] NewerOne:
Hello, first of all say that I am new here and thank you for the manuals that you have put since I without knowing anything about this world, after several readings I have ended up understanding what to do. Thank you

I was going to start here:

https://xdaforums.com/t/all-about-lenovo-a5500-f.3118363/page-5#post-82709129

following the 9 steps you comment

but then I saw this other:

https://xdaforums.com/t/all-about-lenovo-a5500-f.3118363/page-6#post-82889569

And I don't know if I have understood it correctly or not but it gives the feeling that the only thing to do is:

1. install TWRP

That you put it in this link:

https://mega.nz/file/qHZl0YRI#1Ri8Q4pzmSpVw3e2ESG0cGx-DiSR-cOdoPvC4D9sQdc - TWRP 3.0.2 for A5500F

2. put the files "CrDroid_v3.8.7_29.04.2018_A5500-F.zip" and "open_gapps-arm-7.1-pico-20200530.zip" on the SD card

3. boot tablet to TWRP recovery turning off the tablet, press Volume Up + Power buttons and select "recovery" when asked.

4. Install "CrDroid_v3.8.7_29.04.2018_A5500-F.zip". Don't reboot when finished, press back button.

5. Install "open_gapps-arm-7.1-pico-20200530.zip"

Finally I can reboot. Press back button and select "Reboot" - "System"

So I don't need to install ADB or enable USB debugging mode, right?

and I don't have to do steps 3,4,5,7,8 either, right?

Have I understood well the new method that you indicate with CrDroid_v3.8.7_29.04.2018_A5500-F.zip?

Thanks a lot
[Android General] uZveruga:
Hi.

You need a root access and adb to make a backup of nvram partition and to install TWRP.

The adb will not work if the USB debugging is disabled.

Folow the manual for RR_5.8.5 - https://xdaforums.com/t/all-about-lenovo-a5500-f.3118363/page-5#post-82709129

The difference is:

1) on step 6 you need to download and put to sdcard:

- CrDroid_v3.8.7_29.04.2018_A5500-F.zip

- open_gapps-arm-7.1

2) on step 9 - flash:

- CrDroid_v3.8.7_29.04.2018_A5500-F.zip. (don't reboot)

- open_gapps-arm-7.1 (reboot)
[Android General] Rudolf Franko:
Hi please, where can I dowload the .zip file? thanks
[Android General] uZveruga:
FIX_START_RR_5.8.5_A5500F.zip .zip - here

Remember, it's for firmwares based on Android 7.1
[Android General] NewerOne:
ok perfectly understood. so i don't save steps So, as I understood: 1) RR gives sound problems 2) CrDroid adds to the sound problem, that of youtube videos 3) Linage does not give problems? being like this and being the first time I'm going to install, the best thing to do is to install Linage, right?
[Android General] uZveruga:
Any unofficial rom will give "а sound problem". But it's not critical, a sound just a bit quieter, than usual. If you using earphones, you even won't notice the difference.

The people are recommend to use RR_5.8.5.

I use CRDroid, because I have it on my phone and get used to it.