If your white Supernote Manta has started developing a yellowish tint, you’re not alone, and you haven’t done anything wrong. This is a known issue that has been raised repeatedly in the Supernote community, and Supernote’s own team has addressed it directly. Here’s what’s causing it, what cleaning actually works (spoiler: not much), and what your options are.
Why Is My Supernote Manta Turning Yellow?
The yellowing is a paint adhesion and material issue, not dirt or user damage.
Supernote has confirmed that the Manta’s back shell is constructed from two different materials: a PC+ABS plastic frame and a fiberglass centre plate. These two materials have a natural colour mismatch, particularly noticeable on the white model. The device is painted to create a uniform appearance.
The problem is that this paint is susceptible to staining and discolouration over time, even with minimal use and careful handling. Users have reported yellowing appearing within weeks of purchase while keeping the device on a clean white desk, in a light-coloured case, and well away from sunlight. It doesn’t appear to be caused by UV exposure, oils from skin contact, or environmental factors in any consistent way. The discolouration can appear in areas that are never touched.
Supernote has acknowledged the issue and confirmed that they have already made one improvement to the paint formula, resulting in better stain resistance in newer units. They are also investigating solutions for customers with devices that are already affected.
Does Cleaning Work?
Unfortunately, most cleaning methods don’t fix the yellowing because it isn’t surface dirt. Community members have tried:
- Soap and a lightly damp cloth
- Magic eraser
- Q-tips with cleaning soap on the edges
- Acetone
None of these have been reported to restore the original white colour. If the yellowing is paint discolouration rather than surface contamination, no topical cleaning method will reverse it.
The one exception may be very light surface marks or grime. For those, a slightly damp microfibre cloth is your safest option. Avoid anything abrasive or solvent-based on the main body, as these risk damaging the paint further.
What Should You Do About the Yellowing?
The most effective route is to contact Supernote’s service team directly. They are actively reviewing cases and investigating how to address the issue for existing customers.
Email service@supernote.com with:
– Your order number
– Photos of the device showing the discolouration clearly
– A brief description of when it started and how the device has been stored and used
Supernote has publicly committed to supporting existing customers on this issue, so it’s worth reaching out even if your device is out of the standard return window.
What About Dents?
If you’ve dented a corner of your Manta (typically from a drop), the device will likely continue to function normally. However, sharp or raised edges can snag on clothing and cases.
The official route: contact Supernote support at service@supernote.com with photos or a short video. Depending on the circumstances, they may be able to advise on a repair or replacement option.
The community DIY approach (at your own risk): one method that’s been suggested in the community for smoothing out minor corner dents involves applying a small amount of superglue mixed with baking soda to fill the damaged area, allowing it to fully cure, then carefully sanding smooth with fine-grit sandpaper (around 2000 grit) to blend the surface. This is an irreversible modification and carries the risk of making the cosmetic issue worse if not done carefully. However, for minor dents that are catching on fabric, it may be worth considering if professional repair isn’t available to you.
If the dent is significant or near any port, button, or magnetic area, professional assessment is the safer option.
Quick Reference
| Issue | Recommended action |
|---|---|
| Yellowing on Manta body | Contact service@supernote.com with photos |
| Surface dirt or light marks | Damp microfibre cloth only |
| Minor corner dent (no functional impact) | Contact support, or DIY fill-and-sand at own risk |
| Dent near ports or magnets | Contact support for professional advice |
Final Thoughts
The yellowing issue on the white Supernote Manta is a genuine manufacturing limitation that Supernote has acknowledged and is working to address, both in new units and for existing customers. It’s frustrating for a premium device, but the company’s transparency and active engagement with affected users is a positive sign.
If your Manta is discolouring, get in touch with Supernote’s service team. It’s the most productive step you can take right now.
For more Supernote help, browse our full e-ink troubleshooting guides.