iPhone 6 No Service Hardware Fix Solution

Blake Mar 31, 2017

iPhone 6 No Service

Have you come across the iPhone 6 no service issue? We all know what iPhone service means, once your iPhone says no service it means you can’t use it for the basic things, such as texting, calling, and using mobile data. The only way to access the Internet is by connecting to a Wi-Fi network. But what if there is no Wi-Fi? That’s when you got separated from the bustling world. In this article, REWA will present you why your iPhone 6 says no service and a professional iPhone 6 no service hardware fix solution that deals with hardware failure with the help of our newly developed maintenance drawing.


Why does my iPhone 6 says no service?


There are external and internal causes for iPhone 6 no service or searching problem, which means no one-size-fits-all solution. In most cases, the problem is tied to a faulty SIM card while others are due to some network outages, particularly cellular network. Others have also encountered the same error promptly after performing a software update. Software updates can contain some bugs that may affect device functionalities including its ability to search for cellular signals.


How to fix no service on iPhone 6?


The troubleshooting methods are useful for fix iPhone 6 keeps saying no service. (There is a simple guide for fix iPhone 6 keeps searching for signal with logic board repair.) You can find many different ways for it from Internet sites and forums these days. Remove and re-insert the SIM card, reset network settings, disable Airplane Mode, reboot your iPhone and etc.. So, here in this post, we focus on talk iPhone 6 no service hardware solution.


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.


iPhone 6 No Service Hardware Fix Solution


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


Modem Firmware functions normally


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


LCD screen assembly


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.


Remove the shield plate on motherboard


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.


BGA paste flux to the baseband CPU


6. Clean the tins on the bonding pad with soldering iron, then dip some rosin with Goot wick for secondary cleaning. After that, clean it again with PCB cleaner.


PCB cleaner


7. Roll out the maintenance drawing for reference. Point out the U1 Y1 pin as data signal failure. Test the U1 Y1 pin of the baseband CPU with digital multimeter, no resistance. We can conclude that the pin has been disconnected.


Roll out the maintenance drawing for reference


8. Scrape the insulation varnish off the U1 Y1 pin circuit, solder the tins on the circuit with soldering iron for cable welding afterwards. Then align a solder added copper wire with a diameter of 0.02 millimeter to the exposed circuit with soldering iron. Clean it with PCB cleaner.


cable welding afterwards


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

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.


baseband CPU with BGA reballing stencil


11. Apply some soldering paste with BGA scraper and smear evenly on the right place. Blow it with hot air gun for formation, take it down and blow it with hot air gun again.


BGA scraper


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.


hot air gun at 280 degrees centigrade


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


 IMEI code functions well


For more guidance, you can check the Chip Level Motherboard Repair Service – For iPhone & iPad,


if you want to watch the video, please go to REWA Youtube channel.


Tools Used:

Mobile Phone Repair Platform

Electron Microscope

Digital Multimeter

Soldering Station

Hot Air Gun

BGA Paste Flux

Screw Drivers



Want to know more about these tools, please check our Cell Phone Repair Partsand if you want to order our products, please contact us (Click the link to get our detail contact info).


You may also read:

iPhone 7 Black Screen Repair

Fix iPhone 6 Camera Not Working

iPhone 8 Back Glass Repair



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REWA is a world leading electronics repair business solutions provider who was founded in 2008 in HongKong. We are committed to delivering one-stop services covering Sourcing Solution, Technical Support Solution as well as Recycle & Resell Solution.