Guides Library
Search the diagnostics library
Search by symptom, feature or error — then run the ordered checks. Twenty original guides across gestures, updates and fixes.
All problems
24 matching guides
Phone won't turn on
PWR · CRITICAL
Black or frozen screen
DSP · CRITICAL
Won't charge
BAT · HIGH
Charging is very slow
BAT · MEDIUM
Battery draining too fast
BAT · MEDIUM
Phone is overheating
THM · HIGH
Touch screen unresponsive
DSP · HIGH
Wi-Fi won't connect
NET · MEDIUM
Bluetooth keeps dropping
NET · LOW
No mobile data / signal
NET · HIGH
Storage full warning
STG · MEDIUM
Phone feels slow and laggy
PRF · LOW
Update won't install
UPD · HIGH
Update stuck / frozen
UPD · HIGH
Hot or slow after update
PRF · MEDIUM
How do I update safely?
UPD · LOW
Apps not updating
APP · LOW
What are security patches?
SEC · LOW
Swipe navigation basics
GST · LOW
One-handed & quick settings
GST · LOW
Take a screenshot / record
CAP · LOW
Split-screen & app switch
MUL · LOW
Quick-launch shortcuts
SHC · LOW
Make gestures easier
ACS · LOW
No matching guides
Try a different keyword, or ask us to add a guide.
Can't find your exact issue?
Tell us what the phone is doing and we'll point you to the right checklist — or write a new one for it.