Guide with all the steps necessary to change the touch screen of the Caterpillar B15Q yourself.
Characteristics:
Dimensions: 69.5 x 125 x 14.95 mm.
Weight: 170 g.
SoC: MediaTek MT6582M.
Processor: ARM Cortex-A7, 1300 MHz , Number of cores: 4.
Graphic processor: ARM Mali-400 MP2, 416 MHz, Number of cores: 2 RAM memory: 1 GB, 533 MHz.
Internal memory: 4 GB.
Memory cards: microSD, microSDHC, microSDXC.
Display: 4 in., LCD, 480 x 800 pixels, 24 bit Battery: 2000 mAh, Li-ion (lithium ion).
Operating system : Android 4.4.2 KitKat.
Camera: 2560 x 1920 pixels, 1920 x 1080 pixels, 30 fps.
SIM card: Mini-SIM.
Wi-Fi: b, g, n, Wi-R Hotspot, Wi-Fi Direct USB: 2.0, Micro USB.
Bluetooth: 4.0.
Location / Navigation: GPS, A-GPS.
We will start by removing the battery cover. For this we will unlock the safety and with the hands or with the help of a tool, we will disengage the lid.
First we will remove the rubber protector from the audio connector as it covers two of the screws in the center housing. For this we remove the Phillips screw (PH # 00) that holds it.
Now we can remove the four Torx screws (T4) that hold the case and also remove the battery.
In this step we will remove the SIM and microSD cards. To remove the SIM card, we will slide the metal tray, which incorporates the phone, and this will be ejected.
To remove the microSD, we will lift the rubber protector and pull it off.
We will remove the side trims, for this we will remove the three hexagonal screws (H0.7) that hold each one of them.
Now we can unlock the casing.
To remove the touch screen, first we have to disconnect it from the motherboard ..
Now we can undo the plate from the front casing.
The screen is attached to the housing by a thin strip of double-sided adhesive, located all around the contour. We will heat the glass to soften the adhesive and peel off easily.
We suggest 2 methods:
With the hot screen, we will introduce a spike between the frame and the screen and we will slide it around the contour to take it off.
We will avoid the areas where the flex cable of the screen is located.
When we finish taking it off, we will slide the flex of the screen through the hole in the frame.
