Lenovo P2 a42 - No modem / signal after 7.0 update

[jackvonthor]

Hello
I have a problem with my Lenovo P2 a42.
After updating to 7.0 i cannot make calls
Imei is visible, but the phone behaves like there is no signal.
I tried to reflash it via twrp and fastboot but still it has the same problem.

Anyone knows solution to this problem?

[Brka]

Originally Posted by jackvonthor

Hello
I have a problem with my Lenovo P2 a42.
After updating to 7.0 i cannot make calls
Imei is visible, but the phone behaves like there is no signal.
I tried to reflash it via twrp and fastboot but still it has the same problem.

Anyone knows solution to this problem?

Try with downgrading to 6.0.1, for beginning.

P2a42_USR_S062_170117_ROW , Android 6.0.1

If signal gets back, reflash to latest version, also via cable, as first one,

P2a42_USR_S232_170320_ROW , Android 7.0

archive pass: lenovo-forums.ru


p.s. After flashing, check under Settings / About, if baseband version is present,
and check with *#06# if IMEI is present.

If both are there, and still no network, may be some hardware issue,
ie: antenna cable got disconnected somehow, etc.

b.r.
Alex

[jackvonthor]

I am getting a message : FAILED: Do not allow to flash Bootloader image on Unlock device.
The device is unlocked with bootloader.

What could be the problem?