very frustrating if we have a phone but the signal is not stable. some time there, at a time when others did not exist.
If you have a signal on the phone is not stable, sometimes strong, sometimes weak.
Please follow the steps I wrote in this post.
Repair procedures:
- Check whether the phone can be used to search the network manually. If the phone can not find the network manually, the RF IC (HAGAR) damaged, replace the RF IC (HAGAR).
- Also check whether the path to the PA IC was not broken.
- If the phone on the other hand can find the network manually, the PA IC damaged, replace the IC PA.
- After the hardware of the phone has been tested and improved, but problems still arise, we need to reprogram / flash again phone software according to the type and version of the phone or with a newer version than the previous phone software version.
- Turn on your phone, then your phone will function normally again.
very frustrating if we have a phone but the signal is not stable. some time there, at a time when others did not exist.
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