E5573cs-322 update Webui only for ussd

ZUNGUZUNGU

Junior Member
Sep 18, 2020
1
0
FRANCE
Hello,
I have an unlocked modem (see in the title) from MTN. It's unlocked, I have on it the official Huawei webui but ussd is missing. Really need webui WITH ussd.
I see that most of the solutions posted are about unlocking. Mine is unlocked. Or that webui updates with ussd are often for e5573s or e5573-cs-609 or with another number.
Please, please, could you help me with a webui with ussd? where to find and how to do it?
I'm completely confused since I read that it's not possible to update webui without changing the firmware... what firmware, and is it true? Please please, help if could can. Very grateful if you can help.
Regards.
 
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