Acer ES1-431 No Power Successfully Revived

 

I have here laptop Acer ES1-431 with board id: DAZ8ADMB6D0 REV:D diagnosed as dead-short. First thing first, I carefully and slowly check all component via microscope, and I found suspected capacitor. I removed it and luckily it was the one that is shorted. I test the mother board, and the unit can able to power on but without display.

I successfully fixed the no display by flashing good bios bin file that you can download below.

 

 

 

 

 Here's a video on youtube on how I successfully repaired this laptop.

 

I hope it helps.

 

 

 

 DOWNLOAD TESTED  BIOS BIN

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iPhone 6 No Power Successfully Repaired

This iPhone 6 has no power due to disconnection or shorted to ground. What I first did was by visual checking. I look at all capacitor that might have corrosion. But the board was so clean. I then use my digital tested to test the capacitors one by one by setting it to diode mode. I first check on the area where vcc is connected. To make the story short I figured out what was the bad capacitor. See image below. By removing the bad capacitor, the unit came back to life :)

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How To Repair iPad Mini GSM No Power

This iPad Mini GSM has no power due to shortage on board. What I quickly did was I look over the microscope, then attached the battery. I saw the defective capacitor heats up whenever I attach the battery. Removing the bad capacitor solved the problem.

remove

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Acer Aspire E1-531 No Power

I received this Acer Aspire E1-531 from co-tech from Asingan, Pangasinan, comes with no power. The very first thing I checked was if the unit is shorted. I set my 30V power supply to 19V and connect it to the unit, and found out that it's 19V shortage to ground. See picture below.

Almost 1 ampere rating, means there is a short to ground. The 19V line was shorted to ground.

I disassembled the laptop and slowly and carefully saw over my microscope the corroded parts especially capacitors. I saw suspected shorted 3 caps near battery terminal. I removed them one by one and checked but all three are good.  I look at the area near lcd flex connector terminal, I saw 2 suspected caps. I carefully removed them and checked! Viola! One of them was shorted. Got Yah!

After removing the shorted capacitor, the laptop came back to life :)

For info, i didn't replace the bad caps. I just remove it.

now fully working

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ACER E5-411 No Power [FIXED]

Laptop ACER E5-41 comes with no power. I checked if shorted to ground on battery terminal and charging terminal, and it was really shorted. Full shorted. I first download its schematic and analyze the circuit. I removed PQ24 and check if the board was still shorted to ground. Stiil yes. Until I realize that the charging ic OZ8691LN is shorted. I removed it. The short was gone. I replace the charging ic with a good ic, but symptoms persist. Im sure that charging ic that i put in was good, so I decided to look for another defective parts. I found out that PU5, the 3.3valw ic was heating up. When i remove it, the short was gun. Finally I replace the ic and the laptop works perfect.

DOWNLOAD Acer e5-411=1=Quanta ZQM_UMA

acer e5-411 schematic diagram

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iPad Mini 2 GSM No Power [FIXED]

I got this iPad Mini 2 GSM with Retina display from my neighbor. He said that according to the owner the unit suddenly shuttled down, and when trying to charge there's no charging indicator at all. So the unit can't be charge nor can't be powered on.

I dismantle the unit. Check first if it's shorted to ground. YES! It's fully shorted. I checked the board over my microscope to see if there's a burnt capacitor or IC. I saw 2 suspected capacitors as shown on the image below.

To make sure if the two capacitors are shorted to ground. I checked with my multi-tested. But my multi-tester said that the two capacitors are not shorted to ground. So I decided to look again for suspected burnt component. I found another capacitor show on the image below.

I double checked again using my multi-tester, and it's positive. This capacitor is shorted to ground! What I did was I just remove it and the shorted was gone :)

Problem solved!

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Toshiba Satellite L655 No Power [FIXED]

The reason why this Toshiba Satellite L655 can't power was the owner used a universal power adaptor with 20volts output. When I disassemble the unit I saw on its charging circuit the protection diode connected in parallel with the positive with respect to negative. I am sure that this diode was the culprit. Because of the over voltage the diode became shorted, causing the 19V shorted to ground.

I just remove the diode and the laptop was revived!

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How To Repair Shorted Samsung J110H

In the video below will show how to determine or detect the defective capacitor(shorted) that causes the unit not to power on. I use digital power supply.

This is the culprit:

Problem solve after replacing the shorted capacitor.

Happy and satisfied customers.

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How To Fix iPhone 4s No Power (shorted)

When I opened the unit, I found out that the board was corroded due to liquid damage. The board was full shorted. My means of determining the shorted components can be watch below.

After replacing the shorted capacitor, the iphone 4s can be powered on now.

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Samsung G530F No Power (shorted), Fixed

I use my power bank to determine the shoretd capacitor. See video below.

Just remove the burnt capacitor.

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Samsung i9060 No Power (shorted)

How to use my power bank to detect shorted component. In a full shorted unit, capacitor is most likely the culprit. BONGGA! Watch the video below and see how the capacitor heats up.

Ayun! Umusok yung capacitor hehehe. Tanggalin ko na!

ayan tinanggal ko na yung umusok na capacitor

DONE

satisfied and happy si mam. 15 minutes tapos na cellphone nya

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ACER Travelmate B116 NoteBook No Power

ACER Travelmate B116 NoteBook can't power on. When you plug in the charger, the charger light will off. It means that there is a short to ground on charging line. See video below.

It's obvious that there is a shorted somewhere in charging section. I checked the circuit. I found that the charging path has a protective component against over voltage / current. that is the diode. I'm sure that the diode is defective. 

I lift up its one foot and check using tester. Confirmed! The diode is shorted. After removing, the laptop can be switch on now and the charging light on charger no longer shut-off.

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Samsung S7392 Shorted Solution

Samsung S7392 that has a shorted board due to overcharging. The method I used is not very common. When you connect 1.3 voltage you must expect a capacitor heating up. But even 5 miinutes waiting, there's no capacitor that heats. So I decided to use my magic source, LOL! I used my power bank to supply a 3.8 voltage. I connect the negative terminal of my power bank to the negative battery terminal Samsung S7392. The I slowly tap the positive of my power bank to the positive terminal of the phone, and immediately one of the capacitor heats up.That's the deffective one :D I then remove the capacitor, and the shortage was gone. Hehe. Finally, jst replace it and you're done :) The cellphone was able to power on again, and back to normal.

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OPPO R831K Shorted No Power Part II

It's another shorted board OPPO R831K due to overcharging. And as I have said on my post, Samsung J100ML/DS Shorted No Power Solution that not all shorted have the same solution. Like my older post on OPPO R831K shorted. 

This time I use the method on how to solve Samsung J100ML/DS Shorted No Power. I also use my power bank and put lacquer flow on the board. As I've expected again, I did determine the faulty component 'coz the faulty component has been boiled/burst out. Or should I say, melt? Whatever!

Just see images below. Replace it and problem solve!

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Samsung J100ML/DS Shorted No Power Solution

I have here Samsung J100ML/DS Shorted No Power. The solution may vary. Because we don't know what will be the faulty component/s. My method on how to solve this Samsung J100ML/DS Shorted No Power is by using my power bank. I connect the negative terminal of my power bamk to the negative terminal of the unit. Then I put some lacquer flow on the Samsung J100ML/DS board. Then eventually I tap the positive terminal of my power bank to the positive of the board for 2 seconds. Then finally I got the faulty component. That is the capacitor as shown on the image below.

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Samsung T959V Shorted Solution

This Samsung T959V shorted due to water damage. It has a full shorts. If I am repairing a FULL shorted board I use to check the capacitors on the RF part. Most especially around the Power Amplifier IC.

See the solution below. Just remove one capacitor as shown on the image below.

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Samsung i9100 Shorted Solution

Samsung i9100 shorted solution is by removing the capacitor as shown on the image below. The capacitor is connected to positive with respect to ground. If this capacitors shorts, the unit will not power on.

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iPhone 5c Shorted Solution

iPhone 5c shorted due to water damage. Here's the possible solution.

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