Xiaomi Redmi 4X is deservedly considered one of the most reliable devices of its time, but even the highest quality lithium-ion battery loses capacity over time. If your device stops holding charge or turns off by 20-30%, it's time to think about replacing the power source.
In this guide, we will discuss the process of battery replacement in detail, paying attention to the nuances of disassembling the metal case and safely disabling the plumes. It is important to understand that any manipulation of the internal filling requires accuracy, but is not extremely difficult for a user with basic skills.
Before you start, you need to prepare your workspace and tools, and you need to take precautions, because there are fragile components inside the case, and the right preparation is the key to successful repairs and a long life after recovery.
The process of replacing the battery in the Redmi 4X is technically simpler than in modern monoblocks with glass back covers, but has its own mounting features. The metal body requires a special approach to opening, so as not to damage the antenna inserts and not scratch the edges.
To perform the work, you will need a minimum set of tools that can be purchased from any electronics store or ordered online. The main tool will be a suction cup, which is necessary for neat removal of the back cover, and a set of Philips screwdrivers small.
Also, you can't do without a mediator or a thin plastic card that will help you snap the latches of the case without damage, and the use of metal objects at this stage is strictly prohibited, as you can damage the plumes or close contacts.
Be sure to turn off your smartphone before any work begins. Even if the phone is discharged, it is recommended to hold the power button until the screen is completely extinguished to eliminate the risk of short circuit when disconnecting the connectors.
⚠️ Warning: Only work on a clean, dry and well-lit surface. Small screws are easy to lose, and static electricity can damage sensitive electronics.
Prepare the screw container, as the Xiaomi Redmi 4X uses fasteners of different lengths. If you confuse them during assembly, you can damage the thread or punch the body with a too long screw.
Removal of the back cover of the smartphone
Model Redmi 4X It's equipped with a non-removable metal back, which is often misleading, but it's quite easy to remove with the right approach. SIM-cards and memory cards to weaken the structure of the case.
Heat the perimeter of the back cover with a hair dryer for 1-2 minutes. This will soften the adhesive layer holding the panel and make the opening process less risky.
The secrets of working with glue
If the lid doesn't lend itself, don't use force. Add a little more heat and walk a thin blade or mediator around the perimeter, gradually penetrating deeper. A sharp jerk can deform the metal. Apply a suction cup to the bottom of the back cover, closer to the speaker, and pull up, creating a gap. Insert a mediator into the resulting gap and carefully guide it along the edges, freeing plastic latches. Move smoothly, listening to clicks. If you feel strong resistance, stop and check the metal cover, but don't get enough of the metal cover to cover, after the metal cover cover is taken from the metallicate the plate, the plate, the large part of the metal cover is occupied by the metallic plate, after the metallicity is removed from the cover, the s are closed to the plate, the metallic plate, the plate is not enough to the plate, the plate, the plate is closed. First of all, you need to unscrew all the visible screws that attach to the bottom plastic platform. There are usually about 10-12 pieces. Be careful: some screws may be hidden under stickers or in the indentations. Type of fastener Location Features Philips Rotor 10 pcs. Equal length Philips screw 2 pcs. Philips Rotor Protection Rotor 2 pcs. Short Philips Dynamic 2 pcs. Hids hidden under the platform Carefully remove the plastic platform, which also acts as a speaker. Under it you will see the main board and avoid the battery, and the main circuit to remove the power from the battery, and the main circuit, to remove the switch from the main plate, to remove the main plate, to remove the electrical connection, to remove the switch from the main plate. After the battery is turned off, you can safely remove the remaining plumes: the display, the lower board plume and the antenna wire. The antenna cable is often glued, so pull it off carefully. Removing the old battery in the Redmi 4X is glued to the frame of the case with bilateral tape. The adhesion force can over time, but often the battery is held very tight. In no case do not try to put a knife or a metal screwdriver on the battery. Breaking the lithium-ion cell shell will cause instantaneous combustion or bloating, and use the battery frame with a special scorrug, if you do not gradually increase the battery with a special angle, you can use it with a special measure the battery. After removing the battery, inspect the compartment for glue residues. Clean the surface with an alcohol napkin or dry cloth to make the new battery fit smoothly and tightly. Install the new battery and assemble the new battery must be fully compatible with the BN41 model (standard for Redmi 4X). Check the labeling and capacity before installation. Plug the new adhesive base on the body or use the battery already applied to the battery. Insert the battery compartment, making sure that the connector matches the response part on the board. Don't glue the battery immediately, check the "power button to the switch back to the battery, after the switching the battery is straight to the switch on the switch. If the device is running and showing charging, you can start the final assembly. Put the plumes in your channels so they don't get squeezed. Put the metal connector protection in place and screw the bottom plastic platform. Twisted all the screws, keeping the puffs uniform. Put the tray in. SIM-Calibration and first start After the battery is replaced, Android may not display the charge level correctly. This is normal, because the power controller must "get to know" the new battery. This requires a calibration procedure. Discharge the smartphone until completely switched off (0%). Then put it on the charge in the off state until 100%. After reaching full charge, hold the device on charging more 1-2 Repeat the cycle full discharge - full charge still 1-2 once. It'll help the firmware. MIUI The correct capacity of the new element and the correct function of the indicator. How long does it take to replace the battery? With experience and tools, the whole process takes from 20 to 40 minutes. The first time, acting carefully and checking with the instructions, you can spend up to an hour. Can you use a larger battery? Theoretically, if the physical size allows, but the power controller may not work properly with the non-standard capacity, and the cell itself may not fit into the case. Why does the phone warm up after replacement? If the heating is strong or localized at one point, the connector may be poorly connected or the battery itself damaged. Compliance with all the steps of the instructions will allow you to successfully replace the battery and extend the life of your Xiaomi Redmi. 4X. Remember that the quality of components directly affects the result, so choose proven suppliers.