[Sony Xperia C4 Guides, News, & Discussion] gbssengo:
[MENTION=3924647]bigrammy[/MENTION] [MENTION=4539840]AnumEndzeit[/MENTION] So I tried to use Experifirm and use a generic FTF file. However I get the following error:

15/007/2016 16:07:33 - INFO - Selected Bundle for Sony Xperia C5 Ultra (E5506). FW release : 29.0.A.1.55. Customization : Customized GEL

15/007/2016 16:07:33 - INFO - Preparing files for flashing

15/007/2016 16:07:56 - INFO - Please connect your device into flashmode.

15/008/2016 16:08:01 - INFO - Device connected in flash mode

15/008/2016 16:08:02 - INFO - Opening device for R/W

15/008/2016 16:08:02 - INFO - Reading device information

15/008/2016 16:08:02 - INFO - Phone ready for flashmode operations.

15/008/2016 16:08:02 - INFO - Opening TA partition 2

15/008/2016 16:08:02 - INFO - Current device : E5506 - WUJ01LJ9QC - 1299-5125_R3A - 1295-8224_29.0.A.1.55 - GENERIC_29.0.A.1.55

15/008/2016 16:08:02 - INFO - Closing TA partition

15/008/2016 16:08:02 - INFO - Start Flashing

15/008/2016 16:08:02 - INFO - Processing loader.sin

15/008/2016 16:08:02 - INFO - Checking header

15/008/2016 16:08:02 - INFO - Flashing data

15/008/2016 16:08:02 - INFO - Loader : S1_Root_4154 - Version : MT67X2_19 / Boot version : S1_Boot_MT6752_TC9SP_16 / Bootloader status : NOT_ROOTABLE

15/008/2016 16:08:02 - INFO - Max packet size set to 8192K

15/008/2016 16:08:03 - INFO - Making a TA backup

15/008/2016 16:08:03 - INFO - Opening TA partition 1

15/008/2016 16:08:03 - INFO - Start Dumping TA partition 1

15/008/2016 16:08:03 - INFO - Finished Dumping TA partition 1

15/008/2016 16:08:03 - INFO - TA partition 1 saved to C:\Users\Steve\.flashTool\registeredDevices\WUJ01LJ9QC\s1ta\2016-01-15_04-08-03\1.ta

15/008/2016 16:08:03 - INFO - Closing TA partition

15/008/2016 16:08:03 - INFO - Opening TA partition 2

15/008/2016 16:08:04 - INFO - Start Dumping TA partition 2

15/008/2016 16:08:04 - INFO - Finished Dumping TA partition 2

15/008/2016 16:08:04 - INFO - TA partition 2 saved to C:\Users\Steve\.flashTool\registeredDevices\WUJ01LJ9QC\s1ta\2016-01-15_04-08-03\2.ta

15/008/2016 16:08:04 - INFO - Closing TA partition

15/008/2016 16:08:04 - INFO - Parsing boot delivery

15/008/2016 16:08:04 - INFO - No flash script found. Using 0.9.18 flash engine

15/008/2016 16:08:04 - INFO - Opening TA partition 2

15/008/2016 16:08:04 - INFO - Writing TA unit 00002774. Value : [01]

15/008/2016 16:08:04 - INFO - Closing TA partition

15/008/2016 16:08:04 - INFO - Processing partitions.sin

15/008/2016 16:08:04 - INFO - Checking header

15/008/2016 16:08:04 - INFO - Flashing data

15/008/2016 16:08:04 - INFO - Phone boot version : S1_Boot_MT6752_TC9SP_16. Boot delivery version : 1292_1556 S1_Boot_MT6752_TC9SP_16

15/008/2016 16:08:04 - INFO - Going to flash boot delivery

15/008/2016 16:08:04 - ERROR - missing

15/008/2016 16:08:04 - INFO - Some files are missing from your boot delivery

15/008/2016 16:08:04 - INFO - Opening TA partition 2

15/008/2016 16:08:04 - INFO - Processing boot.sin

15/008/2016 16:08:04 - INFO - Checking header

15/008/2016 16:08:04 - INFO - Flashing data

15/008/2016 16:08:04 - ERROR - Processing of boot.sin finished with errors.

15/008/2016 16:08:04 - INFO - Ending flash session

If I uncheck each portion (boot, cache, system, etc...) it just throws the same error, on a different section.

Any ideas?