Flashed 75 today. I previously had tried versions up to 66, but had to go back to 63 because of strange behaviours as reported in previous posts. Here are my findings with 75: can boot into Philz or TWRP using Vol up or down as expected. TWRP will backup to ext-sdcard, but applies wrong date to default filename. Rename facility can be used to correct this. Have not tried TWRP backup to sdcard. Phil's won't backup to ext-sdcard, error thrown up when starting to backup image. Backup to sdcard is possible but again wrong date applies to default filename and no way of editing this prior to backup. Date is always the same, only time different (also incorrect) so now way of knowing which is the latest backup.
I have 4.3 installed with root, achieved via the flashable zip method. I can supply more details e.g. default dates if useful.
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