Your Phone Reset… But Now There’s No Network
You did a factory reset to fix something — and now your Android won’t connect to the network. No signal. No calls. Sometimes it just says: “Not registered on network.” Frustrating, right? This is actually a common issue after a reset. And in most cases, it’s fixable without going to a service center. Let’s fix it fast.Quick Fix (Try This First)
- Restart your phone (this usually fixes it instantly)
- Turn Airplane Mode ON for 30 seconds, then OFF
- Remove and reinsert your SIM card
- Switch network mode (4G ↔ 3G ↔ Auto)
- Manually select your carrier in network settings
Why This Happens
After a factory reset, your phone wipes everything — including network configurations. That’s where problems can start. Here’s what usually causes it: - The phone fails to reconnect to your carrier automatically - Network mode resets to an incompatible setting - SIM card isn’t properly detected after reboot - Carrier configuration isn’t fully loaded yet This usually happens right after setup, especially if: - You skipped SIM setup during initial setup - Your phone updated software during reset - You’re in an area with weak signal Most people don’t notice — until they try to make a call.Step-by-Step Fixes
Manually Select Your Carrier
This is one of the most effective fixes.
- Go to Settings → Mobile Network
- Tap Network Operators
- Turn off Auto Select
- Choose your carrier manually
This forces your phone to register properly.
Check Preferred Network Type
After reset, your phone might default to the wrong mode.
- Go to Settings → Mobile Network
- Tap Preferred Network Type
- Select LTE/4G Auto
Try switching modes back and forth — it refreshes the connection.
Reset Network Settings (Again)
Yes, even after factory reset, this can still help.
- Go to Settings → General Management
- Select Reset
- Tap Reset Network Settings
If your SIM becomes “unknown” after this, check: SIM shows unknown number fix
Check IMEI Status
This is where things get tricky.
- Dial *#06#
- If IMEI shows null or missing, that’s the problem
No IMEI = no network registration.
This usually happens due to: - Software corruption - Failed reset or firmware issue In this case, you may need firmware repair.
Update System Software
Sometimes your phone just needs the latest carrier settings.
- Go to Settings → Software Update
- Download and install updates
This often fixes hidden network bugs.
Reinsert SIM or Try Another Device
Test your SIM card.
- Insert it into another phone
- If it works there → your phone is the issue
- If not → SIM might be damaged or inactive
If It Still Doesn’t Work
Here are less common causes:- Carrier block or inactive SIM
- Phone locked to another network
- Baseband firmware issue
- Hardware damage (antenna problem)
If your signal appears but calls drop randomly, this might help: Calls dropping between towers fix
Extra Tips to Prevent This Issue
- Keep your phone updated before doing a factory reset
- Always insert SIM before initial setup
- Avoid interrupting reset or update process
- Use official firmware only (avoid unofficial ROMs)
- Restart your phone after setup completes
This prevents most post-reset network issues.
FAQ
Why does my phone say “Not registered on network” after reset?
Because the device failed to reconnect to your carrier properly after wiping settings.
Can a factory reset break network connectivity?
Yes, especially if network settings or firmware get corrupted.
Is this a SIM card issue?
Sometimes. Test your SIM in another phone to confirm.
What if IMEI is missing?
That’s a serious issue — you’ll need firmware repair or service center help.
Do I need a new phone?
Usually no. Most cases are software-related and fixable.