Handing your phone to a repair shop can expose far more than a cracked display. Photos, email, saved browser sessions, mobile banking apps and identity documents may all be on the device. A few minutes of preparation can protect your data and make it easier to check whether the repair was completed properly.
This checklist is written for people using local service centres and independent repair shops in Bangladesh. The steps also work anywhere else.
Before you visit the repair shop
1. Record the problem clearly
Write down what is wrong, when it started and what still works. Take a short video of the display, camera, speakers, charging port and physical condition using another phone. Note any scratches or dents. This gives both you and the technician a clear starting point.
2. Save the IMEI and serial number
Dial *#06# on many phones, check Settings, or read the original box to find the IMEI. Save it somewhere other than the phone. The IMEI helps you confirm that the device returned is the same one you submitted. Do not post the number publicly.
If you are buying or checking a device, SiteChai’s IMEI and NEIR guide for Bangladesh explains the related verification process.
3. Create a complete backup
Back up contacts, photos, messages, authenticator recovery information and important app data. A screen replacement may not erase storage, but a repair can fail, require a reset or reveal an unrelated hardware problem. Confirm that the backup actually opens before handing over the device.
- Android: review Google backup, Google Photos and app-specific backups such as WhatsApp.
- iPhone: use iCloud Backup or an encrypted backup on a trusted computer.
- Files: copy irreplaceable documents to a second location.
4. Protect financial and identity information
Log out of mobile banking and wallet apps when practical. Remove unnecessary NID, passport and card photographs. Do not give a technician your banking PIN, email password or one-time code. If an app needs to be tested after the repair, sign in yourself when you collect the phone.
Should you erase the phone?
If the phone must leave your sight, contains sensitive work or personal data, or is going away for several days, a factory reset after a verified backup is the safest option. Remove the SIM and memory card first. Make sure you know the Google or Apple account password required to activate the device later.
For some supported Android devices, a repair or maintenance mode can create a restricted environment for technicians. Availability and behaviour vary by brand and model, so follow the phone manufacturer’s current instructions. Do not assume that a lock-screen PIN alone hides data from every repair process.
Choose the repair shop carefully
Ask for a written estimate that identifies the part, labour charge, expected completion time and warranty. Clarify whether the part is new, refurbished, original or third-party. Avoid leaving the device with a person who refuses to issue a receipt containing the model, IMEI or serial number.
| Question | Why it matters |
|---|---|
| Will my data be erased? | You can confirm the backup and account credentials first. |
| What exact part will be installed? | “Original quality” is not the same as an original manufacturer part. |
| What does the warranty cover? | Parts, labour and accidental damage may have different terms. |
| Can I keep the replaced part? | It helps document what was changed, where practical. |
What to remove before handing it over
- SIM card and microSD card
- Phone case, detachable accessories and personal stickers
- Saved payment cards when a reset is not possible
- Private notification previews on the lock screen
- Work profiles or confidential files that are not needed for testing
Do not disable Find My Device or Find My iPhone until the authorised service process specifically requires it. Apple’s current service instructions explain when Find My must be turned off. Follow the manufacturer, not an unsolicited message.
Check everything before leaving the shop
Compare the IMEI, inspect the frame and test the repaired function first. Then test touch across the whole display, brightness, cameras, microphone, earpiece, loudspeaker, vibration, charging, Wi-Fi, Bluetooth, mobile network, fingerprint or face unlock, and proximity sensor. If the phone was opened, ask what water-resistance guarantee remains; opening a device can affect its original seal.
Ask for the final invoice and warranty terms. Keep your before-and-after photos until the warranty period ends.
If your phone was lost instead of repaired
Do not follow this repair checklist. Immediately lock or locate the device, block the SIM, protect financial accounts and record the IMEI. Use SiteChai’s lost or stolen phone guide for Bangladesh.
Frequently asked questions
Should I give the technician my passcode?
Only if a specific test genuinely requires access and you trust the service provider. A safer approach is to use a supported repair mode, erase the phone after backup, or unlock it yourself during collection.
Can a screen replacement delete my data?
Normally it should not, but repair failures, diagnostics or a required reset can cause data loss. Always back up first.
How do I know the same phone was returned?
Compare the IMEI or serial number and the physical condition you recorded before submission.
Should I remove my SIM?
Yes, unless an authorised service procedure specifically needs it for a network test. Keep the SIM and memory card with you.
Sources: Apple’s device preparation guidance and the relevant support instructions from your phone manufacturer.