Remove the battery and insert it.
Some smartphone models still use a removable battery (not Samsung Galaxy Z Fold 3). If you follow this troubleshooting guide for any phone with a removable battery, you can remove it. Wait for a few seconds and insert the battery. Check if the Samsung Z Fold 3 turns on now or not.
Do a factory reset
I am talking about torching off all the data stored on your Samsung Z Fold 3, including apps, settings, etc. This will get rid of all the data stored and give you a phone just as you purchased it ready for setup. Take a backup of the data beforehand. This could work if there was a software-related issue causing Samsung Z Fold 3 not to turn on. If it was because of a hardware issue, check out the next option mentioned below. You can factory restore your Samsung Z Fold 3 using Recovery Mode(difficulty level: moderate).
- Press the Power plus Volume Up buttons together for a few seconds and release the buttons only when the Samsung Z Fold 3 vibrates and you see a Mi logo.
- Use the power button for selection and the volume rocker for going up and down through the options.
- Select “Wipe data/ factory reset”.
- Select “Yes — delete all data,” and the process will commence
- You’ll have to set up the device after a reboot.
- Monitor the performance and check if the display ever goes black or if it stops the Samsung Z Fold 3 stops turning on.
Flash the firmware
This is where you will re-flash the firmware onto your device. If at the Samsung Z Fold 3 not turning on was a software issue, this method should work. You’d need an ADB tool that you can download from Google’s developer’s website and the firmware from Google or your OEM for the model you are using. Download the required tools and use ADB to re-flash the firmware on your computer. If you can’t or don’t know how to do it, take your Samsung Z Fold 3 to someone who knows how. If the flash isn’t done properly, you could end up with a reboot logo or other issues.
The final resort
Considering that no amount of work (in case you followed several methods mentioned above before failing) was able to retrieve the device, and it is still unable to turn on, the device likely has a hardware issue. Several components could go wrong, and you need a technician to fix the issue either by repairing or replacing the affected component to restore the phone to a perfect working state.
You have options such as either going for a local service center (which is cheaper and speedier) or an authorized service center (which can be expensive but slower) where the former voids the warranty. You can walk into any service center as per your preference and get the Samsung Z Fold 3 working if at all it is possible.
Buy a new phone
Of course, there’s an option even after you go through the final resort mentioned above. If the Samsung Galaxy Z Fold 3 not turning on is a serious issue due to faulty hardware, you will need a new Samsung Z Fold 3. If you have recently bought the phone, you can still get a replacement if contacted within 10 days. Note that some devices have a replacement period of 7 days, so you will have to hurry.
If your phone is seven or 10 days old and out of the replacement period, check if your phone’s warranty covers the issue or not. You can get a replacement unit if the warranty covers such defects. Another option is to buy a new phone if there’s nothing you can’t do with the existing phone facing a dire phone not turning on an issue that is often because of fried or defective hardware issues.
