Error updating bootrom

I connected up the serial cable, opened a terminal program (Pu TTY).

1) To jailbreak and install Cydia: – launch redsn0w again Then on your i Phone/i Pad you will see a hardrive icon followed by a bunch of scrolling code and then running pineapples – and its all happy days.4) After rebooting, launch Cydia on the i Phone, the app will ask you what type of user you are – just go with ‘user‘ unless you want more and tap ‘done’.If your i Phone requires a tethered boot this means that the device requires a software jumpstart (everytime it is booted) to operate after being jailbroken, there are a few apps that can do this but redsn0w also has the function built in.Image Name: Linux-2.6.32.12 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1664912 Bytes = 1.6 MB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ... The bad news is the “Bad Data CRC” error means there’s obviously some corruption with the boot rom. cmp - memory compare cp - memory copy cpumap - Display CPU memory mapping settings.crc32 - checksum calculation echo - echo args to console erase - erase FLASH memory flinfo - print FLASH memory information go - start application at address 'addr' help - print online help icrc32 - checksum calculation iloop - infinite loop on address range imd - i2c memory display imm[.b, .s, .w, .l] - i2c memory modify (auto-incrementing) imw - memory write (fill) inm - memory modify (constant address) iprobe - probe to discover valid I2C chip addresses loop - infinite loop on address range md - memory display mm - memory modify (auto-incrementing) mtest - simple RAM test mw - memory write (fill) nm - memory modify (constant address) pci - list and access PCI Configuration Space phy Read - Read Phy register phy Write - Write Phy register ping - send ICMP ECHO_REQUEST to network host printenv - print environment variables protect - enable or disable FLASH write protection rarpboot - boot image via network using RARP/TFTP protocol reset - Perform RESET of the CPU resetenv - Return all environment variable to default.