The repair part is not working for my motherboard…

Dear iFixit Support Team,

I recently used iFixit parts/tools to repair my Kobo eReader, and after the repair the device is not working correctly. I would like to ask for assistance.

• Product(s) purchased: Kobo Libra Colour Screen Assembly - Genuine
• Purchase date: 18 Nov 2025

Issue description:
After installing the replacement part(s) following the iFixit guide, the Kobo eReader powers on but remains stuck on the “Welcome to Kobo” screen and does not respond to touch. The device cannot proceed to the setup or home screen.

Steps taken:

• Rechecked the internal connections and reseated all relevant cables
• Fully charged the device
• Tried forced restart and manual reset according to Kobo’s instructions

The problem still persists.

Could you please advise:

1. Whether this behaviour could indicate a defective replacement part or a known compatibility issue.
2. Whether the repair part you provide is adaptable for my motherboard…as you haven’t mentioned and give me the choice before I place the order..
3. What diagnostic steps you recommend to confirm if the part is faulty.
4. Whether a replacement or refund is possible for the part if it is determined to be defective, and how to proceed with RMA from Hong Kong.

I can provide detailed photos of the installation and a short video showing the issue if required.

Thank you for your help, and I look forward to your reply.