HUAWEI Mobile Wifi E5577cs-321 stuck with "Installing" Screen

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Hey Guys i read a lot here but duo the Age of this Modem all Methods are really outdated and most of the tools doesnt work anymore.My Problem is that i had a German T-Mobile Version of the Modem with a SimLock and i wanted to unlock via the Tips here in some Threads but sadly i now got stuck in a Installations Mode.I can connect via Huawei Toolbox 1.0.8a and when i do Diagnostics this is the result~~~~~~swver:21.333.63.01.55isover:WEBUI_17.100.21.03.55_MRE5...Read more