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Do you want to learn mobile repairing? Do you want to learn mobile repairing sitting at home? Do you want to start mobile repairing business by learning mobile repairing tips from home? Then this article is written for you only. 99% of people do not know about these mobile repairing tips which I am going to tell you today.
Whatever mobile repairing tips and tricks I will tell you in this article, you will get to see mobile repairing tips and tricks in all types of mobiles, which will help you a lot in mobile repairing.
To know about mobile repairing tips, you have to learn a lot. But I have tried nonetheless that with the help of this article, I can tell you about all the mobile repairing tips that will help you a lot in mobile repairing. So friends, if you are really interested to know about mobile repairing tips, then definitely read this article till the end.
In this article, we are going to learn many tips, tricks and techniques related to mobile repairing. Without wasting much time let’s start learning mobile repairing tips.
Mobile repairing tip of Mobile Battery Connector
Regardless of the company’s mobile, but every company’s mobile has 2 terminals – the first is positive and the second is negative. The remaining points are the BSI points that are used to check the % of the mobile phone.
The battery connector has a capacitor and a diode placed in parallel to the battery connector. Whenever the mobile is short, first of all these two capacitors and diodes should be checked.
All the capacitors that are connected with the plus of the mobile battery connector, if any of those capacitors short out then the motherboard of the mobile gets shorted. So whenever your mobile gets short, you will first of all with whatever capacitor is connected to the plus of the battery connector of the mobile. Check them all.
If the print comes off when you remove the battery connector
If the battery connector detaches from the motherboard, there will be a large capacitor and a large diode near the battery connector. We can attach the new battery connector by attaching a jumper wire to its positive point. But this is what we do when the battery connector as well as the bottom prints are out of place.
You can get negative points from anywhere, because there are many negative points inside the motherboard. From anywhere we can supply the negative point of the battery connector by connecting a jumper wire.
VBAT Mobile repairing Tip
Another mobile repairing tip is VBAT. In a way, it is only the positive point of the battery connector of the mobile, if the battery connector in the motherboard is dislodged from its place and at the same time the prints are removed, then from the vbat point we can give the jumper wire directly to the plus point of the battery connector . Therefore, from whichever motherboard you see vbat written, you can directly jump to the plus point of the battery connector.
This point is also called B+. The mobile motherboard has a charging regulator. Which we also call charging ic. Its first pin is the positive point of the battery connector. If the battery connector is dislodged from its place, then we can supply the plus point of the battery connector from this first point also.
If you see a 6 or 8 leg ic, then from its first pin you can supply to the plus point of the battery connector.
The backlight IC is installed in the mobile motherboard, its first pin is also connected to the positive points of the battery connector. So if the positive point with the battery connector protrudes from the motherboard, you can jumper from the first pin of the backlight IC to the plus point of the battery connector.
The dot is made on one side of the ic, the side where the dot will be made will be the first pin of the ic and that will be the positive point of the battery connector.
This pin number 1 is attached to the coil through pin number six only. For this reason the coil is short. But this does not mean that when the coil is short, you can put a jumper in place of the coil. When the coil is short, you have to change the coil itself and not put a jumper there. Due to this coil, the light burns in the display.
Note: cold testing = One thing to keep in mind when you test these components is that you have to disconnect the battery along with the mobile motherboard. You have to check these components by disconnecting the battery. To check these components, you have to put the multimeter on buzzer mode. This is called cold testing. When you test these components, one thing to keep in mind is that you have to disconnect the battery with the mobile motherboard. You have to check these components by disconnecting the battery. To check these components, you have to put the multimeter on buzzer mode. This is called cold testing.
Hot testing :
Basically, when we do the checking by connecting the motherboard with the battery or with the DC machine, it is called hot testing.
How do you do hot testing?
To do hot testing, when you attach the battery to the motherboard, the first pin of the backlight ic will draw the full voltage of the battery. Meaning the first pin of the backlight IC is full short with the first point of the battery connector ie the positive points. When you check by putting the multimeter on continuity mode, the positive point of the battery connector and the first pin of the back light IC will beep together.
We check the motherboard without battery or without DC machine, it is called cool testing.
Direct supply of battery connector goes to pfo and amplifier.