I found a way to solve the problem without doing too much manipulation:
From a blank SD card, which will only be used for manipulation, we create an EmuNand, and then once on your EmuNand,
You are updating with daybreak to 14.X.X .
Once the last update is done, take your sd in the computer you open NxNandManager (5.2). You go to PRODINFO, you make a dump of it.
You then insert your SD card with the boot crash error as indicated above, and load your card in NxNandManager.
You go to PRODINFO, you make a dump of it for security.
Then, you right-click on PRODINFO and "restore from file" and you will indicate the PRODINFO that you dumped before on the blank SD card.