How To Fix "Mobile Network Not Available " On Android Devices ?
Method 1:
Remove Your Battery and SIM Card
Step 1: Switch Off Your Phone and remove battery and SIM card .
Step 2: Now ,Insert battery and SIM card after 3 or 4 minutes .
Step 3: Now ,Start Your Phone .
Method 2:
Select your Mobile Network Manually
Step 1: Go to "Settings" .
Step 2: Mobile Networks
Step 3: Tap on Network Operators .
Step 4: Select Your Mobile Network manually .
Step 5: Restart your Phone .
Method 3:
Step 1: Goto Settings on your phone.
Step 2: Tap On About Phone.
Step 3: Tap on Software update.
Step 4: Tap on Check for update.
Step 5: If Updates are Available ,Install it .
Method 4: Do a Factory data Reset
backup Your Phone Data First
Step 1: Goto Settings.
Step 2: Tap on Backup and Reset.
Step 3: Now select Factory Data reset.
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