Xiaomi Redmi 4 Prime headphone jack & earpiece speaker problem - GSM-Forum

RAFI KHAN24 · 08-16-2017, 19:10

Hello everyone, I'm new to this forum. I need a solution very badly. Recently I made a amplifier, and unfortunately I plugged amplifier's output speaker line to my Redmi 4 Prime's headphone jack. After starting amplifer, my phone got reboot and earpiece speaker making so noise during call, and also when I plugged headphone, sometimes phone getting rebooted itself while plugging, and right speaker of headphone making only noise and getting hot! Also when I boost bass, headphone stopping any music playing sound. I disassembled my phone and check that the headphone jack port shown about 2V on multimeter, which might be abnormal. Now I can't talk without loudspeaker (because of noise). Guys, how can I solve this??? 😰😰😰😭😭😭

x_files · 09-26-2017, 12:25

check ic power brother,

ogablac · 10-13-2017, 09:47

up. . . . . . ?replace ic power done

javavas · 10-27-2017, 18:56

You should check the filters that are near the hands free jack of the phone that can be from a coils resistors, capacitors or even some IC. encapsulated silicon which are usually called filters Drivers

RAFI KHAN24 · 12-20-2017, 15:04

Someone told me that its CPU IC which got harmed

08-16-2017, 19:10	#1 (permalink)
RAFI KHAN24 Junior Member Join Date: Aug 2017 Posts: 2 Member: 2748241 Status: Offline Thanks Meter: 0	Xiaomi Redmi 4 Prime headphone jack & earpiece speaker problem Hello everyone, I'm new to this forum. I need a solution very badly. Recently I made a amplifier, and unfortunately I plugged amplifier's output speaker line to my Redmi 4 Prime's headphone jack. After starting amplifer, my phone got reboot and earpiece speaker making so noise during call, and also when I plugged headphone, sometimes phone getting rebooted itself while plugging, and right speaker of headphone making only noise and getting hot! Also when I boost bass, headphone stopping any music playing sound. I disassembled my phone and check that the headphone jack port shown about 2V on multimeter, which might be abnormal. Now I can't talk without loudspeaker (because of noise). Guys, how can I solve this??? 😰😰😰😭😭😭

09-26-2017, 12:25	#2 (permalink)
x_files Junior Member Join Date: Apr 2009 Posts: 3 Member: 1014719 Status: Offline Thanks Meter: 1	check ic power brother,

10-13-2017, 09:47	#3 (permalink)
ogablac Junior Member Join Date: Sep 2015 Posts: 6 Member: 2458970 Status: Offline Thanks Meter: 2	up. . . . . . ?replace ic power done

10-27-2017, 18:56	#4 (permalink)
javavas Junior Member Join Date: Jul 2017 Posts: 4 Member: 2734407 Status: Offline Thanks Meter: 1	You should check the filters that are near the hands free jack of the phone that can be from a coils resistors, capacitors or even some IC. encapsulated silicon which are usually called filters Drivers

12-20-2017, 15:04	#5 (permalink)
RAFI KHAN24 Junior Member Join Date: Aug 2017 Posts: 2 Member: 2748241 Status: Offline Thanks Meter: 0	Someone told me that its CPU IC which got harmed