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iPhone 6 No Service Hardware Fix Solution

iPhone 6 No Service Hardware Fix Solution

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 Repair Solution

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

iphone-no-service-2
3. Disassemble the phone, detach phone battery, take down the LCD screen assembly, then take out the motherboard.

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.

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.

take down 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.

Clean the tins on the bonding pad
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.Test the U1 Y1 pin
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.

Scrape the insulation varnish off the U1 Y1 pin circuit
9. Apply some UV curable solder mask to the aligned copper wire, then put it under the UV dryer lamp for 10 minutes.

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

Apply some rosin with soldering iron for cleaning

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.

Apply some soldering paste
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.

align the CPU to motherboard
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:

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).

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5 Comments
  • tracie duong
    10/22/2017 at 7:21 am

    Hi does the y1 u1 chip work same thing on a iphone 6s+? I have a 6s+ that has no service and would like to figure out how to fix it.

  • Michael Hatch
    07/28/2017 at 10:03 pm

    Just had a iphone 6 come in with “no service”. Using a good sim card, phone reads it as verizon sim…tried att sim card and phone reads it as att sim. *#06# shows imei, about phone shows imei and baseband…I have reset, updated software, reset Network Settings, Itunes updates carrier settings on whichever Sim is inserted and recognizes it. No cold solder joints in sim tray, replaced charging port with new antenna, reballed baseband and jumpers on u1 and v1 but still shows “no service”. Any ideas?

    • REWA
      07/04/2019 at 5:52 pm

      Try to replace a new BB-PMU

  • 04/11/2017 at 11:56 pm

    Hey guys, Thanks a lot for that guide. Last week i got one with that problem. FInally found how to properly repair it.

    • rewaadmin
      04/18/2017 at 2:38 pm

      Thanks for the message. Please stay tuned for more how-to articles.

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