Hello.
Today on Lenovo repair p70-a
I will change the display module on it.
But having disassembled the phone all went wrong as planned.
And all because the phone was already under repair
I think this is understandable on a white display on a black phone.
I already took it apart
and gathered back to show you what I ran into.
Removing the lid, we see service the fillings that I have already cut,
why are you now will understand.
Unscrew all screws
Then we go through the mediator and disconnect the body.
And remove the cover, see what were the seals for,
open up
And what do we see?
Torn wires from the battery.
Kapton tape already I wrapped them.
And so they were all soldered to the board
they broke the connector or broke the cable
and decided to go out this way
the wires were soldered and glued on the back
covers on thermo-glue.
And after I removed the cover naturally everything came off
Well, now the replacement of the display not the most important thing)),
and the question was how to recover this miracle repair.
Go,
first remove the battery
To do this, gently unsolder the last wire,
it's good that when three others came off,
contacts on the board remained intact.
Removed the battery
take the sheath and remove all the excess
and make sure that all the contacts on the board are whole.
Well, everything is fine not torn off.
Now we will disassemble the battery.
As you can see here again service sticker,
tearing up everything.
And what we see
plume
just completely sealed off
and 4 wires are soldered to the controller.
Well and good.
Let's go further
so in my inventory, I found a loop with a controller
with old battery,
with the desired connector
with a battery that blew up,
By the way, who has not seen the video link now appears on top.
And also on one of the floor work phones found the desired connector.
There is no other therefore temporarily remove from here.
and order a new one and put it back.
To vypayat it. At first
going through all the contacts lead containing solder,
then remove the hair dryer when about 250 degrees,
plastic at the same time does not melt.
Progrety and remove the connector
It looks like this.
Next, install it on the board,
fix it,
on the pins we make pads with a soldering iron.
We take the connector,
we put it about,
and then centering first one extreme foot first,
and then from the second side.
Then you can safely solder other contacts.
If the feet are soldered together
add flux
and remove too much.
After soldering we clean
and recheck how the connector is connected.
Everything is great, connection clear and nothing loose.
And now you can and check new display.
Connecting display loops and touchscreen,
connect from the unit
supply plus and minus on the train,
check that there are no short circuits,
Connect and turn on the phone.
By the way, links to the tool from the video and to the display module I will leave for you in the description,
I will leave the module for you in the description,
come see.
Also do not forget cashback from LetyShops service.
As you can see the display caught fire, We put a film under the cable,
so that the contacts do not short out,
we will turn, and we will check working capacity display module.
Moving the icon just across the screen
The touchscreen works and the display also works fine.
OK,
turn off the phone
and glue the new module with the frame,
but for now he will dry deal with the battery.
I put acid on the contacts
and remove the old battery power controller,
it is better to immediately mark where we have plus where minus
We will also do with the new controller with a train,
a couple drops of acid
and tinning connecting contacts.
Do not regret the solder, since the terminals from the battery must be completely wrapped in solder.
Contacts with the battery do not really want soldered,
but with acid everything is easy
after sealing clean all contacts
and turn the cable inside the battery case.
Now it's time to check and battery.
The module is already glued in,
take the battery
connect,
and connect the charger,
Excellent phone is charging,
battery and accepts and gives power to the board.
Great, charging current also quite normal for this phone.
After that of course shutdown was checked
power controller when 100% battery charging.
And it remains to collect the phone completely
check it again.
And that is all.
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