After researching all the possible fixes and none working loading manual force

using a cable manual load ,,,,,usb thumb drive....

none working i checked voltage and found that when dsplaying 8888 is because of a interruption in power when loading a file ......

this can be duplicated with any sv 4000 now with 2 units displaying 8888 on the display we needed a fix none of the posted fixes were doing anything to remedy this issue but after taking the cover off and unplugging the main board and turning the unit on from back power button for a count of 5 then turning off then plugging main board back in and turning unit back on from back button the 4000 fired right up and worked great i then loaded a factory file with usb drive and wala all's good again now to see if this was a fluke or a fix i repeated the whole process again on unit number 2 boda bing boda bang wala fixed and working great so this to me is a great way to revive i have now also fixed one that had been stuck on boot also

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