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[Tutorial] How to restore a Lenovo K5 Play to stock

hovatek
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#1

21-06-2019, 05:30 PM


If you're eagerly reading this then chances are that you've somehow messed up your Lenovo K5 Play. The most nagging issue I've bumped into is the phone being unable to detect network signal despite having a valid Baseband and IMEI. spoiler alert: You simply need to restore the global modem.img to fix signal detection problems.

Steps to unbrick a Lenovo K5 Play


First, download the QPST stock rom @ [ Login / Register to download free] should you need it.

Fixing Network detection problem
  1. Unlock your Lenovo K5 Play bootloader
  2. Download TWRP for Lenovo K5 Play @ [ Login / Register to download free]
  3. Flash TWRP to the phone and boot into TWRP mode to confirm. Reboot to system (home screen) once confirmed
  4. Download the Lenovo K5 Play (Global) TWRP backup of EFS & Modem @ [ Login / Register to download free]
  5. Extract the zip file. It'll contain a BACKUPS folder
  6. Copy the BACKUPS folder into the TWRP folder on your phone storage
  7. Boot into TWRP recovery mode
  8. If you've run into unknown Baseband then restore the EFS backup (the 2019-06-21--20-52-08_OPR1170623032_dev-keys folder)
  9. To fix signal problem, restore the modem backup  (the 2019-06-21--20-52-19_OPR1170623032_dev-keys folder)

Important Notice
For those who have the appropriate boxes / dongles, here are Lenovo K5 Play (Global) EFS / QCN backups
  • QCN + EFS (Miracle Thunder): Find attached below
  • EFS (UMT): [ Login / Register to download free]




Attached Files
.7z [Hovatek] Lenovo K5 Play Global QCN + EFS [Miracle Thunder].7z Size: 21.38 KB  Downloads: 202

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(This post was last modified: 23-06-2019, 02:41 PM by hovatek.)
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argent
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#2

21-06-2019, 05:44 PM
Thank you so much..
Please how do we restore the EFS file sir?
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X3non
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#3

22-06-2019, 09:45 AM
(21-06-2019, 05:44 PM)argent Wrote:  Thank you so much..
Please how do we restore the EFS file sir?

TWRP >> restore >> select the backup you intend to restore >> swipe the scroll bar to confirm restore
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aaditya balleda
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#4

30-01-2020, 03:46 PM
I have some issues.i had other version of twrp which cannot see modem backup so i cannot restore modem.it can restore efs but cannot see modem .so i installed the twrp version linked in your post and its asking for a password to decrypt .tried going back and repairing data and changing file system but that did not work too.i did not set any password to lockscreen too.any help is highly appreciated.
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hovatek
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#5

30-01-2020, 07:10 PM
(30-01-2020, 03:46 PM)aaditya balleda Wrote:  I have some issues.i had other version of twrp which cannot see modem backup so i cannot restore modem.it can restore efs but cannot see modem .so i installed the twrp version linked in your post and its asking for a password to decrypt .tried going back and repairing data and changing file system but that did not work too.i did not set any password to lockscreen too.any help is highly appreciated.

Just insert an SD card or OTG cable and restore from these.
To fix the 0MB / Password in TWRp, see https://forum.hovatek.com/thread-30160.html

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aaditya balleda
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#6

31-01-2020, 08:17 AM
Thank you for replying.i was able to restore modem backup from usb drive but still no signal, network problem isn't solved .i live in india btw.i had no issues with global stock rom ,my bad i didn't take backup in timeSadtried switch radio on and changing bands from *#*#4636#*#* but still nothing works.
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aaditya balleda
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#7

31-01-2020, 08:24 AM
Thank you for replying.i was able to restore modem backup from usb drive but still no signal, network problem isn't solved .i live in india btw.i had no issues with global stock rom ,my bad i didn't take backup in timeSadtried switch radio on and changing bands from *#*#4636#*#* but still nothing works.flashing efs did erase imei but i was able fix that with imei tool then again restored modem backup but still network issues are not fixed
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X3non
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#8

31-01-2020, 11:47 AM
(31-01-2020, 08:17 AM)aaditya balleda Wrote:  Thank you for replying.i was able to restore modem backup from usb drive but still no signal, network problem isn't solved .i live in india btw.i had no issues with global stock rom ,my bad i didn't take backup in timeSadtried switch radio on and changing bands from *#*#4636#*#* but still nothing works.

check and confirm, is the baseband on your device unknown? is the imei invalid?
(This post was last modified: 31-01-2020, 11:51 AM by X3non.)
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aaditya balleda
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#9

01-02-2020, 10:53 AM
There are no such errors, previously when i flashed efs i lost imei but i was able restore it via Qualcomm sn repair tool.baseband is also available it's not unkown.
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X3non
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#10

01-02-2020, 07:33 PM
(01-02-2020, 10:53 AM)aaditya balleda Wrote:  There are no such errors, previously when i flashed efs i lost imei but i was able restore it via Qualcomm sn repair tool.baseband is also available it's not unkown.

is your device the global or chinese variant?
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