Why my carrier networks is number on my asus zenfone (x00dda)

[Jayem]

515 025 and i dont have signal on my phone but the simcard is goodcondition help me pls

[Christine_ASUS]

Hi Jayem
Thank you for your asking. Kindly provide the information below so that we can better assist you.
1. Does the issue appear right after any system/apps' download or update?
2. If you change another SIM card, does the issue remain the same?
3. If you re-insert the SIM card, does the issue remain the same?
4. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check any disturbance from installed 3rd party apps.
# How to enter and exit "Safe Mode"

https://www.asus.com/support/FAQ/1005163/

[Jayem]

How can i get on safe mode .? I tried so many sim card and yet still nothing happen . I will be honest to you my back case cover was broken i think the reason is why i dont have signal on my phone the flex was crack

[Jayem]

Where can i buy new back case cover ....?

[Christine_ASUS]

Hi Jayem
Thank you for your reply. For hardware repair question, please contact ASUS repair center in the country of your residence: https://www.asus.com/support/Service-Center-All-Countries/
If it is impossible to access the service center during Covid-19 period, please try CallUs: https://www.asus.com/support/CallUs
**Please backup before you submit the device to the repair center
[Phone] How to back up the data stored in your phone ? | Official Support | ASUS Global