Default Repairing a phone with 7 vibrations and red flashing light

Hello

My DHD got wet, has been dried and cleaned the phone now vibrates 7 times and has a red flashing light when the battery is inserted. The phone isn't sensed when plugged in to my windows computer. Have been told it may be possible to resurrect the phone by using jtag and riffbox as the main chip has been erased.

Any ideas what to do next. Have tried booting with the volume button and power button but nothing happens.

Any help would be great, am in London UK.