[shankar1790]

I have a sc9832a device  (model q402+) which is stuck on boot.I decide to flash it's stock firmware with miraclebox 2.82 (w/o box).
But just give an error NV WRITE failed.so i used upgade down load tool ,its also give error on BKP-NV_FAILED( gsm calli.....) i tried to flash with factory download tool (9832)but its give error on BKP_NV (flash is damaged) .i finally decided to flash with reserch  download  tool but its also throwing error on BKP_NVFAILED .so i unchecked backup and flashed successfully but my imei is changed.
But i have facing a strange thing with device its shows FOREVER LOCKED -emergency  call only with SIM instead of normal no network(due to invalid imei)
I don't have its nv backup file so i tried to  flash my other device nv (same model) too but still same issue

[shankar1790]

I have a sc9832a device  (model q402+) which is stuck on boot.
I decide to flash it's stock firmware with miraclebox 2.82 (w/o box).
But just give an error NV WRITE failed.so i used upgade down load tool ,its also give error on BKP-NV_FAILED( gsm calli.....) i tried to flash with factory download tool (9832)but its give error on BKP_NV (flash is damaged) .i finally decided to flash with reserch  download  tool but its also throwing error on BKP_NVFAILED .so i unchecked backup and flashed successfully but my imei is changed.
But i have facing a strange thing with device its shows FOREVER LOCKED -emergency  call only with SIM instead of normal no network(due to invalid imei)
I don't have its nv backup file so i tried to  flash my other device nv (same model) too but still same issue

[freshtyt]

I have a sc9832a device  (model q402+) which is stuck on boot.I decide to flash it's stock firmware with miraclebox 2.82 (w/o box).
But just give an error NV WRITE failed.so i used upgade down load tool ,its also give error on BKP-NV_FAILED( gsm calli.....) i tried to flash with factory download tool (9832)but its give error on BKP_NV (flash is damaged) .i finally decided to flash with reserch  download  tool but its also throwing error on BKP_NVFAILED .so i unchecked backup and flashed successfully but my imei is changed.
But i have facing a strange thing with device its shows FOREVER LOCKED -emergency  call only with SIM instead of normal no network(due to invalid imei)
I don't have its nv backup file so i tried to  flash my other device nv (same model) too but still same issue

did you try writing the original imei back to the phone?
how did you make the nv backup you tried flashing onto your faulty device?

[shankar1790]

I have a sc9832a device  (model q402+) which is stuck on boot.I decide to flash it's stock firmware with miraclebox 2.82 (w/o box).
But just give an error NV WRITE failed.so i used upgade down load tool ,its also give error on BKP-NV_FAILED( gsm calli.....) i tried to flash with factory download tool (9832)but its give error on BKP_NV (flash is damaged) .i finally decided to flash with reserch  download  tool but its also throwing error on BKP_NVFAILED .so i unchecked backup and flashed successfully but my imei is changed.
But i have facing a strange thing with device its shows FOREVER LOCKED -emergency  call only with SIM instead of normal no network(due to invalid imei)
I don't have its nv backup file so i tried to  flash my other device nv (same model) too but still same issue

did you try writing the original imei back to the phone?
how did you make the nv backup you tried flashing onto your faulty device?

I have another same device nv, which i backup(save to local option)using research download tool

[shankar1790]

Somebody list of available tool to write imei of my device. Like
Cm2spd with loader version

[freshtyt]

I have another same device nv, which i backup(save to local option)using research download tool

where you able to flash this research download tool backup?

Somebody list of available tool to write imei of my device. Like
Cm2spd with loader version

you wont find cm2spd with loader, you can still try searching for though
try miracle box instead either write imei or backup from the other phone then write the backup to your phone
https://forum.hovatek.com/thread-26662.html
https://forum.hovatek.com/thread-17226.html

or try TWRP backup and restore of nv

[shankar1790]

I have already tried that method but always give -
Initialize boot40..
BootLoad Error ID :1
i have selected my cpu model sc9832a.i have tried with other model to no success.

I am not able to backup due to this bootloaderror

[shankar1790]

I have another same device nv, which i backup(save to local option)using research download tool

where you able to flash this research download tool backup?

Somebody list of available tool to write imei of my device. Like
Cm2spd with loader version

you wont find cm2spd with loader, you can still try searching for though
try miracle box instead either write imei or backup from the other phone then write the backup to your phone
https://forum.hovatek.com/thread-26662.html
https://forum.hovatek.com/thread-17226.html

or try TWRP backup and restore of nv

Yes i have flash my nv backup file using research download tool by selecting this backup file in place of NV_LTE.
its flash successfully and valid imei but same issue.
i updated ota.zip file after flashing  stock rom but still same condition.

[shankar1790]

Edit:- i have successfully write its imei back by selecting spd9832a cpu with 8830/10/6815/6531mode instead of BOOT MODE
But problem remains same.

I flashed its firmware again but nothing changes,still same condition.
May be hardware fault because its screen has cracked edges.( like antenna will damaged)
Edit:- I opened up the phone but no sign of damage to device

[shankar1790]

imei, baseband everything is ok and even network strength is showing in phone info (code)not in about phone info.
(*#*#4636#*#* to check) but no network in status bar 

I haven't remember anything mistakenly done by me in miraclebox .