iPhone 8 Plus non-service fault repair

Failure model: iPhone 8 Plus
Symptoms: iPhone 8 Plus no serviecs
The customer described that no serviecs phenomenon appeared in the use of mobile phone, and it was not possible to call the Internet.

iPhone 8 Plus non-service fault repair Figure 1.
Maintenance process:
Upon receiving the mobile phone, the test function found that the phone card displayed no serviecs, and there was something wrong with the signal. You can dial *#06# in the dialing interface to get IMEI, and the operator option can search for the operator.

iPhone 8 Plus non-service fault repair Figure 2.
In this machine, this phenomenon is generally that the U_WTR_E RF IC chip is damaged more. Disassemble the machine, take down the motherboard and replace the U_WTR_E RF IC chip directly.

iPhone 8 Plus non-service fault repair Figure 3.

iPhone 8 Plus non-service fault repair Figure 4.
After the installation test, the signal returns to normal and the function is normal, and the maintenance ends here. This fault is the plug-in card no serviecs caused by the damage of U _ WTR _RF IC chip.