@Sly27
Your frustration is understand able, but please keep in mind that the problem is as voyager56 points out: You are inexperienced. Somehow you have to gain a basis knowledge of what fw does and how to know what its 'parts' are, eg what is the boot.bin (Ldr.bin), & how to extract various regions eg 140.rgn. Not knowing that kind of thing puts you at a disadvantage and also us trying to advise you. It is assumed normally that a member wanting to mod fw has at least a basic knowledge of these things or, as voyager56 pointed out, you do run a big risk of bricking your unit by trying to flash it wrongly. eg 35xx 140.bin to your 3760 could have caused problems for you but fortunately the unit refused to accept it. If it had flashed, it may have just crashed and rebooted, or it have have 'bricked'.

Nobody is betting on when you will brick your new 3760. Voyager56 said he was 'afraid' you would brick it, and points out "To flash regions without appropriate knowledge is VERY dangerous". No bets, just fear that you didn't know what you were doing, and good sound advice to educate yourself first.

Bricking it is the LAST thing we want to happen. Why? That's not what ANYBODY here would want for a start because as i mentioned in my first reply post to you, this forum is about co-operation. Helping each other, for no fees. But...the importance of your possessing basis knowledge cannot be understated. From that post:
Quote Originally Posted by Neil View Post
@Sly27.............
No member here should take you up on that offer of a donation, as it doesn't conform to the rules or co-operative spirit of forums like this one. There are plenty of helpful experienced ppl to guide you but get some basic knowledge first by reading the threads and then you may not even need to post for further assistance. ............
Every single item of basic knowledge that you need to know before flashing fw is available on this forum. We should not need to micro-manage every new member as Loly and Caty are now doing for you on this page over in [Only registered and activated users can see links. ].

So no need to reply to this or even acknowledge it. Keep posting over in the other thread as i see you've been doing while i caught some z's. You'll get there eventually. But please do try to not 'shoot the messenger' because everyone here is only trying to help you. However, you must read everything that is suggested to you and also everything linked there.