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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Xiaomi > Xiaomi Hardware Repair

Xiaomi Hardware Repair General Xiaomi phones discussion, firmwares, solution, help

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Old 02-22-2019, 12:06   #1 (permalink)
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mi note 6 pro lcd light

need mi note6 pro lcd light ways
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Old 05-01-2019, 10:51   #2 (permalink)
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Originally Posted by SHIBU13 View Post
need mi note6 pro lcd light ways
Help mi note 6 pro light ways if anyone have...........
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Old 07-13-2019, 11:20   #3 (permalink)
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need mi note 6 pro lcd light ways jumper solution
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Old 07-29-2019, 01:50   #4 (permalink)
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Old 09-12-2019, 19:55   #5 (permalink)
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i want solution for Redmi Note 6 PRO blacklight too
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Old 09-14-2019, 06:33   #6 (permalink)
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Fastest repair backlight led driver steps ... Without schematics
1. Find serial diode first near lcd connector or pmu block
2. The serial diode connected with serial inductor
3. The both of them has the same line and voltages with vbatt or vph_power
4. Find the pulldown resistor ( resistor which one of it pin connected to the ground ) arround the unit / led driver ic as enable /bl_pwm
5. Check the serial diode connected to the pin of lcd connector or resistol (serial) near lcd connector
6. Make a jumper cable from cathode (serial diode) to voltmeter and set voltmeter in 50v dc
7. Set power supply to 4.0v then connect to the vbatt connector as power source
8. Set analog multi tester in 1x ohm calibration then put the red probe to the ground, and the black probe pointed to the pulldown resistor as an enable for bl led driver
9. The digital multitester will shown the voltage value as output voltage from bl led driver booster regulator ... About 15-30v
that's mean the bl led driver work normally

post the result
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Old 03-18-2020, 07:26   #7 (permalink)
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please give me display graphics solution In mi note 6 pro
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Old 03-25-2020, 16:04   #8 (permalink)
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Last edited by uniontelecom; 03-25-2020 at 16:10.
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