Hi.
Is your disk a Seagate Barracuda 7200.11 or a Maxtor DiamondMax22 ? And what is its firmware ?
Before typing the first Ctrl+z you must isolate heads contacts or remove completly the pcb.
Then type Ctr+z to awake the micro controler.
Then type Z (caps mode)
When you get the answer "spin down complete", put the pcb in place without unpluging nothing. Be careful not make any short circuit. Screw carefully the pcb in place. Then type U (caps mode).
After the answer "spin up complete" you may type 1, then N1 (still caps mode). After return to prompt. Unplug the SATA 12/5V. Await 10/15 seconds and plug in again.
Do not type T and i4... unusefull !
Then Ctrl+z again, wait for the prompt and type m0,2,2,0,0,0,0,22 enter.
At the end of answers which may take a few minutes you can type Z (caps mode) and unplug all.
Your HDD may be awaked again.
Please re-read attentively first page of this topic. It is very important. Elsewhere you may kill your disk.