Unlock finished for E1552 but SIM still being invalid

[kyoto]

Hello!

Is there someone here really have succeed to unlock a Huawei E1552 modem?
When I retest with DC-Unlocker, it shows that SIM: unblocked, I thought that it was cool but when I launch again the application I use to connect, it show "SIM invalid"

I have another question: unlocker applications sometimes give 2 codes "unlock" and "flash"
What the "flash" one is for? Perhaps, it'll be the solution of my problem

kyoto

[Vincentas]

What conenction software do you use? Is it branded (customized by provider)? With unlocked modem you need to use not customized software and enter your new provider conenction settings (APN, username and others).
Flash code is for firmware update.

[kyoto]

Yes, it is customized by our provider! So, do I have to find another connection software?

But with an other software for sending sms, when I send sms, I received it but the application shows "sending failed".

Flash code is for firmware update.

So, when I need it in unlocking?

[Vincentas]

Yes, it is customized by our provider! So, do I have to find another connection software?

But with an other software for sending sms, when I send sms, I received it but the application shows "sending failed".


So, when I need it in unlocking?

Flash code is needed when you are updating firmware.
Try to use this connection software: http://www.dc-unlocker.com/downloads...mised_managers

[kyoto]

Thanks for this link to another connection software, now I see that my modem is really unblocked.

I have another trouble, I chose the connection software with activated voice call and USSD plugins. It is this second functionality (USSD) which interests me a lot, the reason of why I unblock my modem.

I have developed an application processing USSD commands. But the modem always return ERROR. It works in the Mobile Partner software but not in my application and in other applications.

Are Huawei ussd commands different than AT Command standards: AT+CUSD=1?

[kyoto]

Finally, it works but sending ussd is different for Huawei devices.
The AT command is not AT+CUSD=1,"*101#",15 but AT+CUSD=1,"A3235F120",15

So a kind of hexadecimal!

Does someone here have a document about ussd for huawei?