because i want to install a custom rom for my smartphone (MT6572 based) i need my smartphone to be in ext4-fileformat (currently it is in ubifs) because all the ported ROMS for MT6572 are ext4-based. Is it possible to change the filesystem of a smartphone?


Doing a quick Google search it looks there are at least some TWRP recovery options for your phone so the answer is probably yes but you really have to know what you're doing as even a Nandroid backup might not restore if you mess up file system formats. Generally only the System, Data, and Cache partitions can be re-formatted. The recovery partition cannot.

Apparently it can also possibly be done with an spflash tool. See:


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    Hi! I've looked at some of your answers and all of them are somewhat dependent on links. We appreciate your help in attempting to answer the questions here, but please note that this site expects self-sufficient answers. Self sufficient answers means if the link dies or expires your answer would remain standing on its own content and hence, its usefulness would not be affected. Please fix all your answers by adding the relevant info from the links into the answer itself. Thanks!
    – Firelord
    Oct 26 '15 at 1:35
  • Thank you for the feedback. The person answering the question is looking for a prompt answer so the links are very likely to work for them. I can understand how this site is also a reference archive for future people who might have similar problems, but the questions being asked are often so specific I suspect the answers are often relatively unlikely to be found and used by others. Further, there are copyright issues with copying and pasting large amounts of content from other sites and it's quite time consuming to paraphrase large amounts of information. So I guess I'll stop trying to help. Oct 26 '15 at 12:10
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    While we appreciate your contribution and respect your opinion, @mikeatlarge – this site works as Firelord described. People looking for a "prompt answer" neither do get that answer emailed if needing it "really soon", nor are we a helpdesk simply referring to "other sources". Nobody asks you to copy an entire article, but your answer should include at least an outline. Further, if something "might possibly work", that's a comment (and not an answer) – and should be posted as answer only after being confirmed. Be heartly welcome here, but please also adhere to the site's rules. Thanks!
    – Izzy
    Oct 26 '15 at 13:58
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    @Izzy, Thanks for the added background. Unfortunately, for reasons I don't understand, despite having spent multiple hours answering questions here, being awarded lots of "points", and various badges, privileges, and kudos, I somehow still haven't earned the ability to initiate a comment. So, unfortunately, I have no choice but to use the "Answer" option. I would humbly suggest this site is a bit too focused on bureaucracy and protocol rather than getting people's questions answered--to the point it's rather unfriendly to many--including me. So I'll focus my time on more friendly sites. Oct 26 '15 at 15:47
  • @mikeatlarge While I personally would like you to stay here, I would also suggest you to raise your concern (as a genuine and possible contributor) on the dedicated platform, called Android Enthusiasts Meta.
    – Firelord
    Oct 27 '15 at 10:17

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