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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 6 / iPhone 6 Plus / iPhone 6S / iPhone 6S Plus

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Old 06-17-2020, 12:10   #1 (permalink)
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Exclamation iPhone 6 Plus touch issue


Hello All,

I have a iPhone 6+ which touch screen stopped working after use and after restarting it will start work but stopped again after sometime.

i have tried to clean the screen contacts and also reset the software version but still i m facing the same issue screen touch is not working properly.

Do any one have any solution to clear this iPhone issue.

Kind Regards
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Old 06-17-2020, 21:45   #2 (permalink)
orx
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Quote:
Originally Posted by fact41 View Post
Hello All,

I have a iPhone 6+ which touch screen stopped working after use and after restarting it will start work but stopped again after sometime.

i have tried to clean the screen contacts and also reset the software version but still i m facing the same issue screen touch is not working properly.

Do any one have any solution to clear this iPhone issue.

Kind Regards
hi

you should to reball big black ic , chech image

touch.jpg
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Old 06-21-2020, 11:21   #3 (permalink)
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follow the steps below to solve the problem, I copied them from SFS web app.
go to https://www.tapticengines.com/engine/sfs/sfs-online to see the solution image.

step_1
1- Try another LCD (orginal ) or tested one, and test if you still have the same problem.

step_2
2- Check the touch connector ( J2401 ) if it's cracked or damaged, resolder or replace.

step_3
3- Check ( U2401 ) the touch controller IC [ CUMULUS ] if it's damaged or cracked, resolder or replace.

step_4
4- Check ( U2402 ) the touch controller IC [ MESON A1 ] if it's damaged or cracked, resolder or replace. Check ( L2401 ) IF it's cracked or damaged, resolder or replace.

step_5
5- Check ( R2411, R2412, R2433, R2495 ) if cracked or damaged, resolder or replace. Test the connection between ( R2411, R2412, R2433, R2495) and the ( J2401 ) connector as the Picture shows, if there is any missing one reconnect it using a jumper wire.

step_6
6- Check ( C2432, C2433 ) if cracked or damaged, resolder or replace. The voltage on these capacitors must be: (C2432 = 1.8 V ). (C2433 = 1.2 V ).

step_7
7- Check ( C2414, C1577, C1504, C2409 ) if it's cracked or damaged, resolder or replace. Test the voltage on ( C2414, C2409 ) if it's not ( 5.7 V ) , resolder or replace U1501, then test if still not ( 5.7 V ) , Test the voltage on ( C1547, L1519 ) must be ( Main VCC ) if not Check the power IC U1202.

step_8
8- Check ( C2402, C1541 ) if it's cracked or damaged, resolder or replace. Test the voltage on ( C2402, C1541 ) if it's not ( 5.1 V ) , resolder or replace U1501, then test if still not ( 5.1 V ) , Test the voltage on ( C1547, L1519 ) must be ( Main VCC ) if not Check the power IC U1202.

step_9
9- Check ( C2403 ) if it's damaged or cracked, resolder or replace. Test the voltage on ( C2403 ) if it's not ( 1.8 V ) Check the power IC ( U1202 ).

step_10
10- Check ( C2415 ) if it's damaged or cracked, resolder or replace. Test the voltage on ( C2415 ) if it's not ( 1.8 V ) Check the power IC ( U1202 ).

step_11
11- Check ( C2490, FL2486, C2405, C2408, C2441 ) if cracked or damaged, resolder or replace. the voltage on ( FL2486 = -12.0 v ).

step_12
12- Check ( C2404, C2440 ) if it's cracked or damaged, resolder or replace. The voltage on ( C2404 = -12.0 V ). The voltage on ( C2440 = 13.5 V ).

step_13
13- Check ( C2436, C2437 ) if it's cracked or damaged, resolder or replace.

step_14
14- Check ( C2410, C2411 ) if it's cracked or damaged, resolder or replace. The voltage on ( C2410 = 14.0 V ). The voltage on ( C2411 = -14.0 V ).
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Old 07-22-2020, 10:20   #4 (permalink)
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Hope the repair guide below can give you a hint.

https://blog.rewatechnology.com/diag...ouch-id-issue/
https://blog.rewatechnology.com/repa...n-not-working/
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Old 07-25-2020, 15:51   #5 (permalink)
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Quote:
Originally Posted by orx View Post
hi

you should to reball big black ic , chech image

Attachment 375918
Bro what if i heat these IC with some paste? and the IC will take its place again?
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Old 08-10-2020, 14:22   #6 (permalink)
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Bro no voltage this cap and coil how defect parts I change U2402 and u2401
C2404 = -12.0 V FL2486 = -12.0 v
Plz help.
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Old 08-10-2020, 15:59   #7 (permalink)
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This is known issue with 6Plus aka touch disease. First, reball Meson(U2402), if the problem persist, jump M1 pad, the problem is micro damage.
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Old 08-18-2020, 07:06   #8 (permalink)
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Quote:
Originally Posted by AYSER View Post
follow the steps below to solve the problem, I copied them from SFS web app.
go to https://www.tapticengines.com/engine/sfs/sfs-online to see the solution image.

step_1
1- Try another LCD (orginal ) or tested one, and test if you still have the same problem.

step_2
2- Check the touch connector ( J2401 ) if it's cracked or damaged, resolder or replace.

step_3
3- Check ( U2401 ) the touch controller IC [ CUMULUS ] if it's damaged or cracked, resolder or replace.

step_4
4- Check ( U2402 ) the touch controller IC [ MESON A1 ] if it's damaged or cracked, resolder or replace. Check ( L2401 ) IF it's cracked or damaged, resolder or replace.

step_5
5- Check ( R2411, R2412, R2433, R2495 ) if cracked or damaged, resolder or replace. Test the connection between ( R2411, R2412, R2433, R2495) and the ( J2401 ) connector as the Picture shows, if there is any missing one reconnect it using a jumper wire.

step_6
6- Check ( C2432, C2433 ) if cracked or damaged, resolder or replace. The voltage on these capacitors must be: (C2432 = 1.8 V ). (C2433 = 1.2 V ).

step_7
7- Check ( C2414, C1577, C1504, C2409 ) if it's cracked or damaged, resolder or replace. Test the voltage on ( C2414, C2409 ) if it's not ( 5.7 V ) , resolder or replace U1501, then test if still not ( 5.7 V ) , Test the voltage on ( C1547, L1519 ) must be ( Main VCC ) if not Check the power IC U1202.

step_8
8- Check ( C2402, C1541 ) if it's cracked or damaged, resolder or replace. Test the voltage on ( C2402, C1541 ) if it's not ( 5.1 V ) , resolder or replace U1501, then test if still not ( 5.1 V ) , Test the voltage on ( C1547, L1519 ) must be ( Main VCC ) if not Check the power IC U1202.

step_9
9- Check ( C2403 ) if it's damaged or cracked, resolder or replace. Test the voltage on ( C2403 ) if it's not ( 1.8 V ) Check the power IC ( U1202 ).

step_10
10- Check ( C2415 ) if it's damaged or cracked, resolder or replace. Test the voltage on ( C2415 ) if it's not ( 1.8 V ) Check the power IC ( U1202 ).

step_11
11- Check ( C2490, FL2486, C2405, C2408, C2441 ) if cracked or damaged, resolder or replace. the voltage on ( FL2486 = -12.0 v ).

step_12
12- Check ( C2404, C2440 ) if it's cracked or damaged, resolder or replace. The voltage on ( C2404 = -12.0 V ). The voltage on ( C2440 = 13.5 V ).

step_13
13- Check ( C2436, C2437 ) if it's cracked or damaged, resolder or replace.

step_14
14- Check ( C2410, C2411 ) if it's cracked or damaged, resolder or replace. The voltage on ( C2410 = 14.0 V ). The voltage on ( C2411 = -14.0 V ).

very good site tnk ...............
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