Is your Samsung Galaxy Z Flip7 struggling to hold a charge or shutting down unexpectedly? These symptoms usually indicate that the dual batteries have reached the end of their lifespan and require replacement. Because this device features a delicate foldable design with two separate battery cells, this repair requires patience and a steady hand. Expect to work carefully around fragile flex cables and strong adhesive to restore your phone to full capacity.
Required Tools
- 1
Heat the back panels
- Apply heat to the lower back glass and the upper cover screen area using a heat gun.
- Keep the temperature moderate to soften the adhesive without damaging the internal components.
- 2
Remove the lower back glass
- Place a suction cup on the lower back panel and pull up gently to create a small gap.
- Insert a plastic opening pick into the gap and slice around the perimeter to separate the glass from the frame.
- 3
Remove the upper cover screen panel
- Repeat the heating and slicing process for the upper glass panel containing the small display.
- Be extremely careful not to insert the pick too deeply, as you might sever the fragile display flex cables.
- 4
Disconnect the batteries
- Unscrew the protective metal brackets covering the motherboard and lower board connectors.
- Use a plastic spudger to gently pry up and disconnect both the main battery and the secondary battery flex cables.
- 5
Remove the wireless charging coil
- Remove the screws securing the NFC and wireless charging coil assembly.
- Carefully lift the coil away from the device to expose the large battery underneath.
- 6
Extract the small battery
- Apply a few drops of isopropyl alcohol around the edges of the small battery in the upper half of the phone.
- Wait a minute for the adhesive to dissolve, then gently pry the battery out using a plastic spudger.
- 7
Extract the large battery
- Repeat the alcohol application for the large battery located in the lower half of the device.
- Slowly pry the large battery out, ensuring you do not puncture or bend the cell during removal to prevent a fire hazard.
- 8
Install the new batteries
- Clean any leftover adhesive from the housing using isopropyl alcohol.
- Apply new adhesive strips, then firmly press the new small and large batteries into their respective compartments.
- 9
Reassemble the device
- Reconnect the battery flex cables and reinstall the NFC coil along with its screws.
- Apply fresh adhesive to the upper and lower back panels, press them firmly into place, and allow the phone to charge fully before use.
Disclaimer: repairs are done at your own risk. Devices contain batteries and live components; improper handling can cause injury or fire. For a safe, warrantied repair, contact us.
FAQ
Do I need to replace both batteries at the same time?
Yes, the Galaxy Z Flip7 uses a dual battery system that functions as a single unit. Replacing both cells ensures optimal performance and prevents charging imbalances.
Will this repair compromise the water resistance of my phone?
Opening the device breaks the factory waterproof seal. You must use premium replacement adhesive during reassembly to restore basic moisture protection, though it may not equal the original factory rating.
What should I do if the battery adhesive is too strong?
Do not use metal tools to force the battery out. Instead, apply a few more drops of isopropyl alcohol and wait a few minutes for the adhesive to soften further.
Sources
Professional Device Repair vs. DIY Guides
While our step-by-step guides are perfect for troubleshooting minor issues at home, complex hardware faults require expert intervention. If you are facing critical issues, choosing a professional phone repair Slovenia or laptop repair Slovenia service ensures your device is handled safely without risking further damage.
Why Choose KRON Servis for Your Tech Repairs?
At KRON Servis, we repair over 3,284 devices every month with an outstanding customer rating of 4.9/5. Whether you need a reliable phone repair Ljubljana or comprehensive servicing for consoles, TVs, and smart mobility, our certified technicians are here to help. We operate in two convenient locations: Zagrebška cesta 83a in Maribor and Vilharjeva cesta 29 in Ljubljana, open Monday to Friday from 8:00 to 16:00.
We use high-quality OEM parts and offer a 12-month warranty on all repairs. Professional diagnostics are available for 25 € (VAT included). Avoid the risks of DIY mistakes and let our experts restore your device. For more details on our rates, visit our pricing page, check our services, or contact us directly at questions@kron.si or via our contact form. You can also track your device anytime on our repair status page.