I guess you meant there is nothing I can do except to wait for the palm rest to come.

Very disappointed on Dell tech support though.

Out of warranty support doesn't come with a time guarantee.  Dell's general charge is $160 for anything except the mainboard or display - so it doesn't sound likely the mainboard is going to be replaced;  the cost for that alone is likely to exceed $300 out of warranty.  Nor will Dell provide a loaner system -- particularly out of warranty;  no one will.

If this system is critical to business, you may want to consider a new system - with a minimum 3-year onsite next business day warranty.  Keep the repaired system as a spare - but it's not prudent to rely on any out of warranty system for business-critical work.

If that's what you're waiting for, it's about a $30-40 part - and can be changed by a local repair shop in under an hour.

https://www.parts-people.com/index.php?action=search&search=7450+palmrest

My guess would be some liquid found its way under the power button.  It takes very little to cause problems.

Thank you very much. How can that got broken anyway?

Another 4 days again (more than 1 month already). After urging with the SENIOR SUPPORT RESOLVER, he said he is going to send me back my laptop with the refund minus the diagnosis fee. Out of warranty customer is being treated like dirt.

They treat the out of warranty customers like dirt!!!

I have a Dell Latitude 7450 that has a boot up issue. After pressing on the power button, the battery button light goes on for 5 seconds, and it then goes off. I reset the c-mos, and it is good for 1 or 2 reboots. I called the Dell support, and they told me my laptop support ended 2 months ago, and I will have to pay for the diagnosis. They sent me and box and I shipped the laptop to Dell. They called me 3 days later, and told me the motherboard, the power button and the palm rest are all bad. It is going to cost me $160 to do the repairing. I OK with it, and they told me it would take a few days to get it done. Five days later, they called me up and told me they did not receive the part, it would another 6 days for "the palm rest" to be arrived. Again, being a tech support for years, I understood the processes, I told him I could wait. Six days later, they called and told me to wait for another 11 days. Not being too happy I told the manager to call me, he said nothing he could do. Eleven days had passed, he called again, this time, another 6 days. The only thing he said was the laptop is out of warrantee and that's the way it is. Six day passed, this time, another 5 days. Only this time he said they got hold of the part. Today I called Dell, and the senior support resolver told me they don’t have the part, the ETA is another 4 days.

I told him I can order the part from the web, ship it to them, and they can do the repairing. “That’s not the way Dell does it,” he said. He said, with a very bad attitude, that best thing he can do is to ship the broken laptop back to me, and I can deal with it myself. He can only refund the repairing cost but not the diagnosis cost. I asked to talk to his manager, and he said he is on the highest level, and there is no one to talk to. And if so, he or she is going to say the same thing.

Is there anything I can do now? Thanks.

They can't install a part they don't have. 

You can get a palmrest from a Dell parts seller, and either install it yourself or have a local shop install it - it's not a difficult repair, and the total cost will likely be under what Dell quoted you.

they could not tell when they can receive the part, so they send the laptop back to me unrepaired.