So far you have not told us much what happens EXACTLY after a flash try except the information-less statements "blocked" and "does not work", so unless you tell us something we can work with, we cannot do much. The following is therefore a complete guess.
If you indeed have flashed the file kader_73 suspects, channel-up should still work, provided the .IRD you try to flash has the correct resellerID. I suspect he current resellerID in this crap loader is 270200A0. If the resellerID's do not match te Original loader displays Er.10; what the current loader does in such cases I have no way of knowing.
So here is the next option: download this file and unpack it. Use a good reseller changer to set the resellerID to 270200A0 (many change the A0 to 00). Flash the resulting file using channel-up. If successful, the resellerID of the receiver is 270100A0 (Octagon SF918G SE+).
I do not know why people change bootloaders without need; Enigma2 and Neutrino can be built to run with an unchanged factory boot loader with an HS7119 (and on a HS7429 and HS7819 for that matter). Why almost nobody does this is not clear to me.
Ergo: NEVER, absolutely NEVER, change a bootloader unless:
- you know what you are doing,
- you want to say goodbye to the not-so-bad and very stable factory firmware,
- you know beforehand what resellerID the receiver has after the change,
- you want to lose most, if not all recovery possiblities and your warranty if there is one,
- you are prepared to run into serious trouble or even brick your receiver if something goes wrong,
- there is a way back you completely understand and are capable of performing it with the means at your disposal,
- AND finally: there is a very good reason for changing the loader (to be able to run Enigma2 is not one).
Regards,
Audioniek.