machines not threaded correctly through the tension, or the bobbins not threaded right. if the tension is correct check that the bobbins going the right direction.
Be sure you replace the cover and screws that closes the lamp area. You wont get a picture if it's not closed. and also be sure the lamp is plugged in all the way with it's screws in place before replacing the lamp cover.
before it boots press f1 or what ever your lap top requires to go to bios setup. you should be able to change it there in bios setup then save it and boot.
You can bypass the password by removing the jumper marked password on the motherboard. Mine was next to the battery on the mother board This eliminates the original password which will allows you to sign in. However you cannot change the password with the jumper removed. you must put the jumper back in to change the pass. Therefore remove it and boot into your bios setup. Under security you can change the password by putting the jumper back in and continue with password changes by first entering nothing in the space marked password just click through each question by leaving it blank. then go back and put the password you want or leave it blank if you don't want one. if you don't want one at all, save changes and exit bios setup. Hope i explained it okay. good luck, once you remove that password jumper it's easy just take one step at a time, Lynn Wood lynnwood53allynn@gmail.com
you need to know what size engine you have. 2.3 liter 4 cylinder, 3.0 L 6 cylinder, 8 cylinder etc. However the firing for a 97 is : 1-4-2-5-3-6, which is a 6 cylinder . You can find more on what you need at google .com. Type in your exact year and engine size. Click on firing order and It will give you the information , or click on videos and a youtube video will show you how.