Data recovery drom a (basically) dead Z1

[LightHawk]

Hey guys,

my battery on my Z1 is pretty as dead as it gets, and my new phone arrives within the next few days, so that's fine and I'm not replacing the battery on a phone I don't plan on using anymore.

However because of the horrible state of the battery the phone powered of during use quite a lot and frequently started to "optimize apps" which takes a while since I'm apparently having 194 apps installed. Most of these probably are Sony apps because I can't recall 50 apps I've installed but that's not the point anyway.

Yesterday the phone died completely and wouldn't even charge anymore, or at least I thought so, until today plugging it in out of habit the phone actually started charging again. Excited to be able to recover my data I turned it on once it loaded to 100% and then saw it's optimizing apps again, so I let it sit there and did something else. Eventually I checked on the phone to find it charging from 1% again.

Letting it fully charge and powering it on again the phone did the same thing again, and (I believe due to the high processing power needed for this and the maxed out screen brightness that I can't turn down) the Z1 died halfway through.

Since all my data including all phone numbers, photos and other (partially somewhat important) data is still on the device and there only (I know, stupid but I didn't think I'd need to back it up daily) I really need it to power on to retrieve said data. Is there any way to skip the optimization or so install a custom rom or a basic Sony rom or anything like that in order to achive that?

I'm happy about any kind of help,

Thanks in advance,

LightHawk.

[LightHawk]

Ok, so I just noticed a problem with this:

Since the phone does that while it's in the process of booting up it won't even show up for my PC at all.

[LightHawk]

New idea:

I'm pretty sure the issue isn't that the device needs so much more power than it can charge to power up but instead that there are so many lithium chunks in the battery that it simply cant draw enough power through. Seeing as most smartphones can't power on at all if you remove the battery I'm assuming it's the same with the Z1.

However if there was a way to work around this and power the phone directly from the usb port instead of the battery it should be fine, right? Is there a way to achive that?