That could indicate physical flash damage which is not correctable by cure firmware. Quickcure3 usually does work on 1xxx series to enable MSM in a software-bricked device so the continued boot-loop indicates that it is maybe a hardware problem as Quickcure doesn't involve the original firmware at all. The message "unable to program the requested memory region" when flashing full firmware might mean that region 14 where the main system software is stored is physically damaged or it could be region 127 or even both.

You could try to flash an RGN made without a fw_all.bin component as a test. Be aware that 13x0 have two different HWIDs. Most are 0972 but devices with Mediatek chips have 1104. Double check your HWID: [Only registered and activated users can see links. ]. To make such an RGN, open original fw in RGN_Tool and uncheck the second section for fw_all.bin then save as xxxx01000630.RGN substituting 'xxxx' for your device's 4 numeral HWID. See image below:
Spoiler: Click
[Only registered and activated users can see links. ]


If Updater.exe can successfully flash region 127 (hex 0x7F) then it's maybe region 14 (0x0E) which is damaged. If you get the same message then try flashing again using an RGN file made including fw_all.bin but without section 3, resources_7F05.bin. If you get that message again trying to flash only region 14 then it's likely unrecoverable but there are some other things we can try.