iPhone 11 Pro No Service Repair (No 2G-3G-LTE) PA_HB/UHB RF Diagnostics

Hello Everyone.
in today's video, we have an iPhone 11 Pro that came with no service problem in this one I will be repairing this iPhone and we will also enter the radio frequency area we are going to talk about the high/medium/low/ultra band power amplifiers PA_HB/UHB and will be going to check the short for the line VFE_HI_3V15 and see where is shorted and why is shorted.
0:00 Intro and diagnostics
1:49 Checking another antenna flex
2:38 View the board under the microscope
2:54 Separate the boards
3:05 Testing with board tester
3:47 Measuring and basic diagnostics
6:17 PA_HB/UHB and short explanation
8:49 Founding the short and removing it
9:13 Testing the network after removing the short
9:42 Reballing and soldering the boards together
10:27 Final Test
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Thanks for watching and as always I hope you enjoyed the video and it was helpful for you if you have any questions please leave them in the comments down below and for more interesting Fixes and Future videos please leave a like and subscribe to the channel.
AJK;)
#NoService #iPhone11Pro #Microsoldering

[@chinaphonefixteam6300]

Your abilities are amazing

[@lucasszeyk3718]

Nice video like always. Maybe in futures… can You show how to check output voltages with oscilloscope on sandwiches boards ? ;) it will be very interested for me and for all iPhone repair fans also ;D You doing great job ! Greetings

[@AlexDiasReparos]

Muito bom!

[@cuneytcetinturk8707]

thank you brother

[@guzo116]

Man, this is just evidence I needed to prove it’s not the sim. 450 for a 512gb gold 11 pro and no service. Hopefully whoever i see to fix this doesn’t charge me an arm and a leg.

[@SuperAnnychka]

👍👍👍

[@KiKi_241]

hi 👋🏻whats the problem if my ip 11 wifi connection always searching even my other device still connect perfectly😅and my data connection also the same

[@bootytrainer]

у меня такое же с 11( интересно, сколько стоит починить его?!

[@eljomopr]

I think that is a common problem on iPhone 11

[@KLHK1981]

Don’t use any vpn. My issue solve after uninstalling the vpn