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I have a Wileyfox Spark, for lovers of it, you surely know it comes with CyanogenMod13 OS as it's stock. But you know very well how one might want a more decent Nougat or Oreo based CM14 or CM15 or even AOSP7.x.x. I have all the ROMs I need in the device and a ready TWRP 3.2.0, a full backup of the stock images from boot.img to userdata.img. Installing the new ROMs work fine despite the fact that on any custom OS I have tried, the device boot's up with the boot animation 180° rotated. This continues to bootup and it only returns normal if I turn display off and on. Flashing the stock boot.img solves the issue of rotation but since the ROM isn't stock, it just Bootloops infinitely. I'm not a Kernel developer and neither do I have enough knowledge on how to do. I suggest somebody with a workaround for this issue. I don't like the stock OS which I'm forced to return to.

  • So what is your question here? As this site focuses on end-users, development questions are off-topic here. Have you considered asking the ROM developers in the forums where you downloaded those ROMs? – Izzy Dec 4 '17 at 20:44
  • I'm looking for an alternative way to deal with this locally, not through redevelopment. That's why I said I need a 'workaround' since all ROMs behave so, it seems like a local issue because all developers won't be making a similar error you know. I have tried more than 10 different developer's works. So it seems something associated with TWRP, Phone or Some phone thing should be addressed – Thally Ace Dec 4 '17 at 20:52
  • Ah, OK. In that case I'd say: closing the eyes for a little while would be the easiest work-around – or do you boot that often so it really hurts that much? Afraid from the user's end there's not much else that could be done. But well, I might learn otherwise (wouldn't be the first time I got a surprise here :) Good luck then! // PS: Might well be Wileyfox incidentally put the logo upside-down and has their boot-code flipping it – just to see if a device to be serviced was tampered with? #D – Izzy Dec 4 '17 at 20:56
  • Okay. Some people don't like living with a bug they know it exists like me. If perfection is not attained I don't, for example seem to live up. That's why imma be curious. Closing an eye is not closing your mind. Just an example: If you have a serious ailment and the doctor shows you to assume you're well, will you take that and be normal? – Thally Ace Dec 4 '17 at 21:01
  • No offense was meant, sorry if I sounded rude! Just saying it might be the only thing left – while still hoping someone comes up with something better. – Izzy Dec 4 '17 at 21:10
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If you can bear with having to turn screen off/on once the device had booted up, and just want the bootanimation to look normal, that's quite easy - just edit the bootanimation itself to make it upside-down.

  • Grab and extract /system/media/bootanimation.zip.
  • Rotate every extracted image by 180 degrees.
  • Recompress the extracted files, keep the structure (compare with the original if necessary), and choose "storage" when asked about compression level (any actual compression will prevent Android from reading the file).
  • Place the modified file back to where it was and set proper permissions.

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