ZTE MF90 unlocked , worked fine then "Invalid Sim Card"

[n-777n]

Hello
I have unlocked my zte mf90 using dc-unlcoker
device detected, signed in and had 7 credits , pressed unlock and it did that successfully
I restarted the modem and it really worked ! two different carrier SIMs worked fine and got connected to the internet
The next day the SIMs are no longer recognized even by the original(locker) carrier SIM
it displays this message :
"No SIM Card or SIM Card Invalid!"

Here are some picture in series, see attachments
I tried "reset" the modem both from the web UI and by the physical button
tried all three carriers' SIMs but nothing worked

any solution? please

[Vincentas]

Maybe you have enabled diagnostic port fro this device before unlock? If so, then detect modem by dc-unlocker and click disable diagnostic port.

[n-777n]

I just disabled the diagnostic port and restarted the modem and that did not solve the issue
tried resting after that as well but same thing, the problem is still there.

[Vincentas]

I just disabled the diagnostic port and restarted the modem and that did not solve the issue
tried resting after that as well but same thing, the problem is still there.

Please copy (do not send screenshot) all information that is detected by dc-unlocker when not original sim (sim from other provider than modem) inserted.

[n-777n]

Here it is:

For correct ZTE modem detection, please plug modem with invalid operator SIM inserted. Wait till software starts the modem, close ZTE software and then you can detect modem with DC-Unlocker.


DC - Unlocker 2 Client 1.00.1195

Detecting modem :

selection :
manufacturer - ZTE modems
model - Auto detect (recommended)

Enabling ZTE modem driver... OK
Waiting for ZTE modem...

Found Applications port COM25
Found Diagnostics port COM23

Found modem : MF90
Model : ZTE MF90
IMEI : 359734030183447
Firmware : BD_ZTE_MF90ZAINV1.0.0B03
Compile date / time : May 31 2013 11:16:01
Chipset : Qualcomm MDM9215
NAND Flash : H9DA2GG1GJAMCR
SIM Lock status : unlocked

================================================== =================

[Vincentas]

Here it is:

For correct ZTE modem detection, please plug modem with invalid operator SIM inserted. Wait till software starts the modem, close ZTE software and then you can detect modem with DC-Unlocker.


DC - Unlocker 2 Client 1.00.1195

Detecting modem :

selection :
manufacturer - ZTE modems
model - Auto detect (recommended)

Enabling ZTE modem driver... OK
Waiting for ZTE modem...

Found Applications port COM25
Found Diagnostics port COM23

Found modem : MF90
Model : ZTE MF90
IMEI : 359734030183447
Firmware : BD_ZTE_MF90ZAINV1.0.0B03
Compile date / time : May 31 2013 11:16:01
Chipset : Qualcomm MDM9215
NAND Flash : H9DA2GG1GJAMCR
SIM Lock status : unlocked

================================================== =================

Here is no problem with unlock and unlock done without problems or errors. Also, if it has worked before means nothing had been damaged with unlock.
Check sim card. Maybe it is not correctly inserted or any problems with it.