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Monday, July 31, 2017
iPhone 5s positive ways
Below is the image where you can find the battery positive connections that has a 3.8V. If you have a shorted iPhone 5s unit, you can check all these red colored parts by removing one by one.
How To Fix Samsung Galaxy Grand Neo Plus Can Charge, But Can't Power On
shortedboard
1:32:00 PM
power switch ways, Samsung Galaxy Grand Neo Plus. i9060i, switch ways
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Here's a Samsung Galaxy Grand Neo Plus GT-i9060 from my customer. He said that it normally charge, but it can't be on. Basically it's a power switch ways problem or the switch alone. Let's check the switch.
After dismantling the unit I found that its switch flex is clean, no trace of dirt or corrosion. I suspected a rust membrane :) But first I check the switch connection by shorting the positive and negative switch connection. It's good.
What I need next is to check the switch flex's membrane. And as I have expected, the membrane is rusty as seen in the images below. Just clean it and you are done.
Thursday, July 27, 2017
Repairing iPhone 4 No Power
History: water damage
First thing first, that is basic troubleshooting
1. Open the unit, check if grounded/shorted. Not shorted/grounded. Also check board by visual checking.
2. Replace battery and try to power it on. Still can't power on.
3. Connect usb charger to laptop and see if it connect or asking for usb driver. No reaction.
4. I always do this, remove lcd and connect it again to laptop. Finally it connect! I thought LCD set was damage. but when I replace LCD set, still it doesn't power on.
5. Analyze.... While I'm thinking I notice a heat up on power IC and other neighboring components.
6. What I did is to connect its positive and negative terminal to power supply and found out that output current is not normal when you press power on(with LCD attach)
7. But when powered it on without LCD attach, current output is normal. Aha!
8. I Immediately check the LCD connector ways and here's what I've found:
9. The 2 capacitors are shorted.. Removing these 2 fixed my problem.
Saturday, April 22, 2017
OPPO R831K No Display Solution
Due to water damage this OPPO R831K has black or no display. Below is an image of OPPO R831K No Display Solution.
Tuesday, March 28, 2017
Repairing Lenovo A3300-GV Not Charging And Hang Up
After removing the damage charging port pin2 and pin4 lifted, in other words it was opened circuit. If this pin2 and pin4 is open, you will not be able to reprogram the tablet. The only solution to the problem is to find the data ways. Just simply jumper it. You can see a hint on the image below for the connection. After applying the 2 jumpers the tablet can now be reprogram. I use CM2 dongle to reprogram the tablet.
Monday, January 30, 2017
iPhone 6 Grayed WiFi Other Solution
After replacing WiFi IC ( U5201_RF ), and still resulted in grayed WiFi, the other solution can be shown below. That is to replace " L5201_RF " at " C5201_RF ". This was a trick made by Makoto28. Again, thanks for sharing this solution sir Makoto28. I am your follower.
iPhone 6 Hang On Apple Logo Only Hardware Solution
When you connect it to iTunes, there's no response. This hardware solution was revealed by Makoto28. Credits to you again sir.
The soultion is to change the U2 IC ( U1700 or other called Tristar )
iPhone 6g Touch ID Sensor ( Fingerprint ) Not Working Solution
Here is a guide on how to repair iPhone 6 with touch id problem. This solution was made by Makoto28. Credits to him.
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