Hello apriliars3,
I was in 6.2 and my boot was corrupted.
I took the opportunity to switch to 7.1 with tinycore-redpill but I loaded the wrong .pat file, I loaded 7.1.1-42962...
By searching a little I saw that this version is compatible and I fell on the ARPL but the last version does not boot.
I don't know if is it difficult to change the version on the bootloader.