[Discussion] Reporting my results thus far with Unc0ver A12X 12.4 on iPad Pro 11-inch

Here’s a quick rundown of how things are going, in case anyone finds it helpful.

1. This thing is lightning fast now. Holy fucking shit, I’ve never seen it run this fast. It’s jaw-dropping. While I used Chimera when I was on 12.1 and had the usual animation speed-up tweaks, this seems like it’s in a whole new league. Maybe it’s just my perception, but I doubt it — the speed difference in every aspect of how it runs is noticeable.

2. I currently have the same camera and Face ID-related problems (e.g., passwords, App Store “payment not completed”) many have already reported (for which, thankfully, a fix is on the way). At first, I didn’t notice any of those issues; they seemed to appear after a few hours (and a number of resprings/reboots with the jailbreak). But as of right now, they persist through resprings, ldrestarts, and reboots/rejailbreaks. So until this is fixed, I have simply disabled Face ID in my Settings for all uses except unlocking the device (which, for whatever reason, is unaffected by this bug).

3. All touch screen responsiveness issues that existed in iOS 12.1 (the culprit was unknown, but was thought to be a firmware bug that had something to do with the palm rejection algorithm for the Apple Pencil) are completely gone now. This is fantastic, because that bug was super-aggravating. (If you had the misfortune to deal with it, you know exactly what I mean. :-) )

4. Battery usage is excellent. Whereas I initially had huge battery drain issues on the partial jailbreak version of Unc0ver for A12(X) (the first time I had ever encountered such an issue, and it was totally obvious — now I know what some of you mean when you say you’re having battery drain issues!), these issues were completely fixed with the very next version. This newest version is no different, in that the battery usage seems to be completely normal.

5. Occasionally, when jailbreaking, the process will hang at 1/30. (If it gets to 120 seconds and is still sitting there, you know this is what’s happening.) Simply rebooting and rejailbreaking solves the problem (in fact, it’ll complete the jailbreak in about 5 seconds). The longest it ever took to jailbreak was 108 seconds, but that was only the very first time — since then, it either takes about 25 seconds or 5 seconds. I don’t know what causes these differences in speeds, but 25 seconds is hardly a problem, and 5 seconds is the fastest I’ve ever been able to jailbreak any device I’ve ever owned.

6. Further to item 5, the respring that is initiated by Unc0ver once the jailbreak is logged as completed is, for some reason, insufficient to actually make the device fully jailbroken — rather, it will only appear as though it has the partial jailbreak from the earlier version of Unc0ver (i.e., your tweaks will not display on the springboard, your Cydia-based applications will not appear on the springboard, your tweaks will not appear in Settings, but you will have SSH functionality and will still have any applications you previously installed via SSH, such as MTerminal and Filza). To fix this, you simply need to respring the device again some other way. My method is to open MTerminal, type “killall SpringBoard” (no quotes, and it is case-sensitive), then hit return. The device will respring, and a few seconds later, the problem is solved. I have noticed, though, that my device will not seem to remember the most recent placement of icons and folders on my springboard, so for now, I’m not really moving them around because all of it gets undone each time I have to reboot and rejailbreak. This strikes me as an issue that is probably frequently encountered by pwn and his team when devising these jailbreaks, and is probably an easy one to fix; accordingly, I’m copying u/_pwn20wnd and u/geosn0w on this post so they’re aware of it. It’s a minor inconvenience at most, and certainly doesn’t outweigh the benefits of this otherwise awesome jailbreak.

7. All in all, I’m fucking thrilled, and incredibly grateful to pwn and his team. You guys are absolute geniuses. This was SO worth the wait!

If anyone has any questions, please feel free to ask.