[wincel]

I'm really desperate by now and would very much appreciate if someone can help solve that.
My Kindle DX is at latest updates, standard software from Amazon, used daily and not problem with network or whatever. It started acting up two days ago when it would not manage to connect to the Kindle store despite displaying bars and 3G symbol.

I tried a soft and a hard restart without any change. Then I reset it to factory results. After trying to re-register it, the circle would just keep rotating without any effect and then it would tell me that it could not connect and I should try again soon. At this point I could not only see the bars (4 out of 5) and 3G symbol but I could browse the Kindle shop just fine ...
The Kindle still showed as registered in the Amazon account too. I de-registered it online via website. Tried to re-register it again via Kindle. Same thing, claiming it could not reach the network - but network was fine, browsing the store no problem, 3G and 4 bars.

I contacted Amazon tech support and they tried the same things: restart, register via Kindle (failed again), reset to factory, register via Kindle (failed). Then Amazon manually registered it online for me, but my Kindle still shows as unregistered on the device. I can browse the shop, I can download samples, I can even buy books and then it suddenly says "(my name) we are sending you your book ..." and it pops up. I can send books from the website from my collection and it shows up. But any feature that is based on Kindle switching to "registered" mode is greyed out, because the software on my Kindle somehow does not make the switch fully. I can't sync, I can't reach my archive, I can't use collections.

I asked the Amazon tech support if they can reinstall my software. They say they can't update the software, I am already at 2.5.8. I told them I'm not looking to update, I just want it reinstalled, I can go to recovery mode in my Kindle (took lots of googling to find that information), I just need a 2.5.8 that is not corrupted. They said they don't have access to that version.

I have another Kindle DX here with broken screen but it seems to switch on and was wondering if I can extract that 2.5.8 and reinstall it on my otherwise functional other DX? I read that there is some personal information in those images that can Amazon make ban your DX? If that is true: how would I get the 2.5.8 from my kindle DX with the broken screen extracted (needs to be done via PC as the screen is just bars/lines), replace the personal information/identifier from that one with my 2nd one with the software corruption and install it on the 2nd DX?

Maybe of interest to anyone else, I got some information about tech support modes for the DX:
A) Reaching the recovery with 2.5.8:
1. Hold Power button for 30 seconds
2. Release Power button and immediately start pressing Home button until screen starts blinking (ca. 40 seconds)
3. Release Home button
4. Enter "RESET" via keyboard, wait for the loading bar to finish = it goes into reboot mode
5. Theory now: connect to PC (it is all empty for my under Windows 10), dump update file into drive and ... then what? Dumping the 2.5.8 update file from Amazon into it does nothing
6. Unplug from PC
7. hit R4 to reboot (?)

B) Reaching tech status page on DX with 2.5.8: Hold ALT button pressed while typing Y-Q-Q to reach "page 611", which shows network status, SIM status etc etc

C) Reinstall (?) with linux while in recovery mode:
Connect kindle to the usb port you will see Usb connected.
In terminal (console) write:
fdisk -l
this will list all drives on the computers
Look for a 3.65 GB (can try df -kh as well) drive and make sure it is the Kindle. Remember it's device id. It should be something like /dev/sdc or /dev/sdd it will be last in the list.
then Type:
dd if=/path/to/rootfs.img of=/dev/sdd1 bs=1024
Wait till this command finishes and Press (R 4)
Kindle will reboot and starts.
Make Factory Reset from settings and thats all.
This should help in you case.

But I have no linux system ...