Nokia G42 5G Battery Disconnection

Written By: Manuel Haeussermann

Comments: 6

Difficulty

Moderate

Steps

Time Required

25 - 40 minutes

Introduction

This is a prerequisite-only guide! This guide is part of another procedure and is not meant to be used alone.

Use this guide to disconnect the battery in the Nokia G42 5G.

Tools

Step 1

Power down your phone and unplug any cables.
Insert a SIM eject tool, bit, or a straightened paper clip into the small hole on the SIM card tray on the upper left edge of the phone.
Press firmly to eject the tray.

Step 2

Remove the SIM card tray.
When installing either a SIM card or a microSD card, make sure they're in the correct orientation and sitting completely flush with the edges of the tray before reinserting the tray into the phone.

Step 3

The back cover is held in place by plastic clips.
Insert an opening pick under the small notch in the SIM card tray slot.

With the phone flat, screen up, insert the pick into the slot horizontally, then rotate the pick to the upright position, as shown in the photo in step 4.

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With the phone laying flat on its back, insert the pick into the slot horizontally, then flip the pick upright, as per photo in step 4.

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Don't try to fully remove the back cover just yet, as it's still connected with a cable.

Jørn Gunnar Skorgevik -

Step 4

Position the opening pick at a steep downward angle between the back cover and the screen assembly.
Slide the opening pick down the left edge of the phone to release the plastic clips.

Step 5

Turn the opening pick around the corner and continue to slide it along the bottom edge to release the plastic clips.

Step 6

Slide the opening pick up the right edge to continue releasing the plastic clips.

Fingerprint-cable is easily broken. Careful around that button.

Jørn Gunnar Skorgevik -

Step 7

Slide the opening pick along the top edge to release the remaining plastic clips.
Don't try to fully remove the back cover just yet, as it's still connected with a cable.

Step 8

With the phone laying screen-side down, carefully lift the right edge of the back cover, opening it like a book.
Take care not to strain or tear the attached fingerprint reader cable during this procedure.
Lay the back cover next to the phone.

Step 9

Use a Phillips screwdriver to remove the 3.8 mm‑long screw securing the fingerprint reader bracket.

Step 10

Use a pair of tweezers or your fingers to remove the fingerprint reader bracket.
Take care not to puncture the battery with sharp tools—a punctured or creased battery may leak dangerous chemicals or cause a fire.
During reassembly, make sure to slide the bracket's edge back into its slot under the motherboard cover.

The metal fits under the black plastic near the screw shown to the left of the photo. When re-assembling, insert it back under here first, then lower the right-hand side back into place.

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Step 11

Use the pointed end of a spudger to disconnect the fingerprint reader by prying the connector straight up from its socket.
To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Don't press down on the middle. If the connector is misaligned, the pins can bend and cause permanent damage.
Remove the back cover.

Step 12

A white sticker might cover one of the top screws. Pierce through it with the tip of your screwdriver or use a pair of tweezers to remove it.
Use a Phillips screwdriver to remove the ten 3.8 mm-long screws securing the motherboard cover.