Hello. I bought mi MI5 last week and came with a strange 22.214.171.124.0 MIUI global version. I think that version have a battery drain problem due to the fact in 6 hours the battery level decreased from 100% to 52% and I used the phone for aprox. 40 min phone calls and aprox. 45 min for browsing and emails. I send a request for unlocking the boot-loader and I wait to receive the approval. Till then, can I made something to increase the batery life on my phone?