Bios update incomplete, computer shut down and I can't load the Bios

[Alex-C7]

Hello, can you help me?, HP Notebook PC 2000-2d01LA (Energy Star), I performed the Bios update and before finishing my Laptop it turned off, previously when I turned it on I got error 601 internal battery, I changed the battery of the Bios for a new one, my Laptop does turn on but only on a black screen, the keyboard button indicates (BIOS error) flashes 2 times, 1- I removed the battery from the BIOS several times to try to restart as recommended by HP ( it didn't work), 2- I removed components and batteries, I did the test again (it didn't work), 3- I already did all the tests that HP recommends and from their videos like win + b and the other tests (it didn't work), 4- Download the Bios from the HP page that corresponds to my computer, I put it in USB, I start the Laptop, if it reads the USB, with battery it turns on the Laptop and shows the screen with error 601, then it removes that information and turns on the screen without information for two seconds, as if it were trying to continue loading the process and the image turns off, a few seconds later it recharges the USB and does the same, 5- I disconnected the power cable and left the external battery alone, it turns on and does the same thing that I mentioned before , 6- I disconnected the external battery and left only wired power, if it turns on, it does not show error 601 and if it shows the screen but without information for two seconds and the image turns off, and it does the same process again, like this all the time, but it does not continue loading the Bios via USB. (if it reads the hard drive and the memories are fine).