mobile

I and my dad own one plus one devices each. I had no problem unlocking the bootloader and rooting my device and my father's. Flashing a rom on my device usually takes a few seconds. So I tried to flash the latest paranoid android rom on my father's device but 7 mins passed there was no change in the logs of the TWRP (2.8.6.0) recovery and also it overheated A LOT . So i manually switched it off. ( battery percentage at that moment - 81%) , now since there was no os installed I put the device into bootloader mode and used wugfresh's bacon development toolkit to flash stock and unroot the device , my computer recognized the fastboot device and send the modem and a few other files before the oneplus one device completely shut down. The cmd prompt showed <waiting for device> and nothing was happening , so i removed the phone from the usb cable. Now the phone is not switching on at all :/ I'm neither able to boot into bootloader nor recovery mode. I tried putting it for charging for an hour but nothing showed on the display. I presume that at the moment since i interrupted the flash stock process, there is no software to govern the device and hence it cant recognize the pressing of buttons. I'm stuck and my father is furious :'( any help ?