I have been using e7240 since 1 year and on a sudden one day it won't boot up, and see storage led is blinking and power led is solid.
After leave it in the same situation, it booted up after 70 mins, then after restart problem is surfaced back.
I have done basic troubleshooting, swaping ssd with the new one and even swapping the memory sticks as well but any of those activities didn't help.
Any help is much appreciated
You did not state the status of the wireless LED. If it is solid as well that indicates a CPU error. This support page has the blink codes.
Only storage led is blinking and Power led is solid network and charging led are off
I have already seen the page, but that page doesn't specify the problem i am having