I have a Huawei 5G router. Same issue! The answer is maybe on the comment above. It seems there is a global issue with 5G router....

@David-TP Dear David, after 1 day of operation, the Red Light of the Death came back...... :( Unfortunately I cannot continue to be a beta tester... I will send it back to my reseller and get my...

@David-TP Hello, ok thanks. I'll keep you informed...

No Pin code issue. Thanks for the advice

@David-TP Hello, So I switched to 4G mode. It lasts around 10 hours before I get again the RED LIGHT of DEATH ... What is the next step? Thanks.

@David-TP ok thanks a lot for these explanations. For info I installed external antennas with full reception I keep you informed for the 4G ....