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clarareader · 01-20-2026, 03:57 AM

Hello,

My daughter's 2019 Clara HD failed to boot and I am in the process of rebuilding the SDC.

Some references on the net describe a calibration procedure ([1] or the presence of calibration data on the initial, unpartitioned space of the SDC [2]. I did not find much more info on the subject, is it something really useful/needed?

thanks

[1] https://www.ifixit.com/Guide/How+to+...Display/170983
[2] https://wiki.postmarketos.org/wiki/K...HD_(kobo-clara)

01-20-2026, 03:57 AM	#1
clarareader Junior Member Posts: 8 Karma: 10 Join Date: Jan 2026 Location: Italy Device: kobo clara hd	Display calibration Hello, My daughter's 2019 Clara HD failed to boot and I am in the process of rebuilding the SDC. Some references on the net describe a calibration procedure ([1] or the presence of calibration data on the initial, unpartitioned space of the SDC [2]. I did not find much more info on the subject, is it something really useful/needed? thanks [1] https://www.ifixit.com/Guide/How+to+...Display/170983 [2] https://wiki.postmarketos.org/wiki/K...HD_(kobo-clara)