November 2015 Firmware updates for Hisense 4K TV's can be found here:
Download Centre | Support | Hisense UK
My UB55EC591 will not find the update using the 'Upgrade Check' option or OTA in the menu, instead you must download the CORRECT file from Hisense's website and transfer it to a USB stick - not as straight forward as it would seem!
The .zip file contains instructions on how to perform the update but after faffing around for 2 hours I've finally figured it out myself.
TV into Standby mode > Insert USB stick > Press and HOLD standby button on remote, keep holding through the Hisense logo until Software Upgrade appears on the screen - if it fail's to appear or appears and quickly reboots then follow my unofficial guide below!
- You MUST have the USB stick formatted as FAT32. (NTFS wont work, I made sure I used an empty freshly formatted stick)
- External HDD's *WILL NOT* work (by the time the drive had spun up you've missed the update file check and the TV will boot as normal)
- You must first power up the TV, go to Settings>Network>Network Configuration and then turn it to OFF, Then enter Standby mode and follow the 'Official' instructions (For some reason leaving the wi-fi on my TV would reboot partway through the update reverting back to original F0714 firmware)
I can confirm my UB55EC591 is now running F1118, will perform some tests and see if the input lag fix is successful otherwise my set will unfortunately be going back as I previously found game consoles unplayable
I'm going to assume that this guide will apply to at the very least all other EC591 models
Cheers,
John