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Old 02-06-2019, 08:38 PM   #361
knc1
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Quote:
Originally Posted by NiLuJe View Post
Eh, all my Kindles spend most of their time in a pile on my shelf, and I've yet to encounter any issue reviving them from their "oh noes, battery is empty" shutdown .

(f.g., earlier this afternoon, I booted a Kindle Touch that I last touched in May).

You just have to remember to unplug/replug them once they've rebooted, as some of them stay in trickle charge otherwise.
(... and also not to leave those with RP+CRP installed in diags too long, as, again, weird charge behavior there).
I recently had four KT devices that I had to do the freeze/charge routine on.
One of them it was: freeze/charge/freeze/charge (had 3G, should have been off, but ...).


But all four of them had been sitting on empty battery screen for years.
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Old 02-07-2019, 03:30 PM   #362
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Hey, yesterday i bought Kindle Paperwhite 2018, in the device i have 5.10.2 firmware, is there already any way to downgrade? Thank you for any response.
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Old 02-07-2019, 04:02 PM   #363
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In two words:
Serial port.
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Old 02-07-2019, 04:24 PM   #364
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Quote:
Originally Posted by knc1 View Post
In two words:
Serial port.
Ok, I can do flashing through serial port, I can solder, only how to open kindle? What kindle serial usb cable to pw4? In python I've already written something so I won't have any bigger problems. I am open to suggestions
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Old 02-07-2019, 05:14 PM   #365
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Originally Posted by VeronVB View Post
Ok, I can do flashing through serial port, I can solder, only how to open kindle? What kindle serial usb cable to pw4? In python I've already written something so I won't have any bigger problems. I am open to suggestions
Suggestion #1:
Read the thread on the topic.
All Kindles use the same USB to 1.8v serial adapter.
All Kindles since the K4 use the same connector pad layout.


Suggestion #2:
Ask Google for an illustrated teardown or two of the PW4.
From the outside it does not look any different than any other PW* to open.
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Old 02-08-2019, 11:53 AM   #366
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I thought the latest PW4 serial-jailbreaking thread indicated a problem with missing bootmode command, and the boot command being locked on these new firmwares?
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Old 02-08-2019, 02:31 PM   #367
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Quote:
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I thought the latest PW4 serial-jailbreaking thread indicated a problem with missing bootmode command, and the boot command being locked on these new firmwares?
Uncomfirmed.
BUT
Keep in mind, both the KOA2 and the PW4 are the "Androidized" systems, not the legacy "dual boot" systems. So expect differences, keep good notes about what you find so you can document it here.
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Old 02-15-2019, 10:48 PM   #368
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Just want to post one more success. PW4, original FW 5.10.0.2. Followed all the steps as prescribed, upgraded to the new FW 5.10.3. Re-installed Python, KUALBooklet-coplate, and kindle-linkss. KUAL and Screensaver work. as do all the other buttons.

Thank you all.

Marina
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Old Yesterday, 07:53 PM   #369
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Originally Posted by marinai View Post
Just want to post one more success. PW4, original FW 5.10.0.2. Followed all the steps as prescribed, upgraded to the new FW 5.10.3. Re-installed Python, KUALBooklet-coplate, and kindle-linkss. KUAL and Screensaver work. as do all the other buttons.

Thank you all.

Marina
Ok so I'm following OP's guide (first time jailbreaking a kindle), I install KUAL using the 2.7.15 then am I supposed to copy the files from KUALBooklet-coplate? Still getting white screen when launching KUAL.

*EDIT - Nevermind, im uninstalling KUAL2.7.15 and reinstalling KUAL-Coplate, see if that works

*EDIT 2 - KUAL working! Yay - ignore this post

Last edited by dream_state; Yesterday at 09:48 PM.
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