How To Fix No Service On iPhone 6

Have you came through “no service” on your iPhone 5/5S, iPhone 6/6Plus, iPhone 6S/6S Plus, iPhone 7/7 Plus? What does it mean when your iphone says no service? it means you can’t use it for the basic things, such as texting, calling, and using mobile data. You won’t be able to use the mobile internet until you get rid of the error. The same thing goes for messages and calls. The issue will appear in the areas with no network coverage, or in the areas where network coverage is poor when you can also see a message “searching for service”.

There are external and internal causes for ‘no service’ problem, which means no one-size-fits-all solution. REWA here presents you a professional iPhone 6 no service solution video and steps with pictures that deals with hardware failure with the help of our newly developed maintenance drawing. 

How to fix no service on iPhone 6:

1. Turn on the phone, searching for the signal – no service. Spread out the dialer board, enter ‘*#06#’ for IMEI code – no results. We can draw the preliminary cause as signal failure.

2. Go to Settings – General – About, IMEI code displays right, SIM card readable, and Modem Firmware functions normally.

3. Disassemble the phone, detach phone battery, take down the LCD screen assembly, then take out the motherboard.

4. Remove the shield plate on motherboard with cutting nipper(Hot air gun is not recommended here because the shield plate is hard to remove and high temperature might cause damage to components nearby). Attach motherboard to PCB holder.

5. Apply some BGA paste flux to the baseband CPU, blow it with hot air gun at 300 degrees centigrade. After a while, take down the baseband CPU.

6. Limpie el estaño de la almohadilla de unión con un soldador, luego sumerja un poco de colofonía con malla de desoldar Goot para una limpieza secundaria. Después de eso, límpielo nuevamente con limpiador de PCB.

7. Despliegue el plano de mantenimiento como referencia. Señale el pin U1 Y1 como falla de la señal de datos. Pruebe el pin U1 Y1 de la CPU de banda base con un multímetro digital, no hay resistencia. Podemos concluir que el pin se ha desconectado.

8. Raspe el barniz aislante del circuito del pin U1 Y1, suelde el estaño en el circuito con un soldador para la posterior soldadura de cables. Luego, alinee un hilo de cobre con estaño añadido y un diámetro de 0,02 milímetros con el circuito expuesto utilizando un soldador. Límpielo con limpiador de PCB.

9. Apply some UV curable solder mask to the aligned copper wire, then put it under the UV dryer lamp for 10 minutes.

10. Apply some rosin with soldering iron for cleaning, PCB cleaner afterwards. Once finished,reball the baseband CPU with BGA reballing stencil.

11. Aplique un poco de pasta para soldar con el raspador BGA y unte uniformemente en el lugar correcto. Sople con una pistola de aire caliente para la formación, retírela y vuelva a soplar con la pistola de aire caliente.

12. Apply some BGA paste flux to the bonding pad, align the CPU to the right place, blow it with hot air gun at 280 degrees centigrade.

13. Once the motherboard is cooling enough, clean it with PCB cleaner. Afterwards, install the motherboard to the phone and test – IMEI code functions well.