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Pqi h551 cant detect in pc

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Most of the behavior occurs when the laptop with battery or the computer can not supply the stable power. The problem is often resulted from connecting lots of USB devices at the same time. Because most of USB device use the power supply from computer, it leads to the insufficient power supply of computer. Please make sure that the computer supplies stable power. You may connect the power cable if you use laptop. Moreover, we suggest you removing the other unnecessary USB device.

Posted on Mar 29, 2014


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Posted on Jan 02, 2017


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1 Answer

MY new pqi hdd 551 beeping and don't showing in my what i have to do??

the hard driver reader is damaged ,you can only take it to a specialist to recover the data but not to repair

Jan 03, 2015 | PQI H551 500GB 2.5" USB 2.0 Portable...

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Win 7 detects PQI USB flash drive 8GB but not successfully installed due to no driver found

It is probably faulty in that case if other USB items work in the same port.

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Yes, you can get the USB cord just about anywhere.

Nov 01, 2012 | PQI Computers & Internet

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My windows 7 laptop suddenly doesn't read or recognize anymore my pqi HDD 551

You will need to recover the data using something like this data recovery program.

I've had to use it many times in the past but in this case you need to plug that drive into another system as an external drive or slave drive and run the software from there. It will rebuild the drive and hopefully recover the files.
Good luck.

Aug 31, 2011 | PQI 320GB H551 USB 20 Turbo Boost External...

1 Answer

I can't open my HDD551, please it have some software instalation or something like that?

Hi. first you have to figure out if the problem is with the HDD or with your computer, to do this connect your HDD to another computer and see if you can open the information, if the problem is the HDD take it to a service center, if the problem is your computer re install the drivers for the HDD.
Good luck.

Aug 30, 2011 | PQI H551 500GB 2.5" USB 2.0 Portable...

1 Answer

Window command to format HDD H551 portable.

If you are connect it with a windows 7 it ask you reformat your hard drive. But if you work in a windows Xp it will work fine and no need to reformat.

Jul 19, 2011 | PQI H551 640GB 2.5" USB 2.0 Portable...

1 Answer


depending on your operating system this may vary in windows7 click start control panel you should see system security tab in that back up then windows will ask for a back up DESTINATION location you can select either dvd or another device or in XP click start all programs accessories system tools you should see back up after the back up finishes windows will tell you your computer back up was successfull also you could right click on the back up file select properties this will tell you how many GB were used
hope this helps

May 11, 2011 | PQI H551 500GB 2.5" USB 2.0 Portable...

1 Answer

Why my hardisk drive cant detect in pc,thx for answer.

It could be one of the following


1. Faulty USB port on PC:  Try a different computer or laptop

2. Faulty USB cable: Try a different Cable

3. Corrupt memory: Fix by an expert required such as

4. Faulty connections on main circuit inside the hard drive: Fix by an expert required such as

5. Faulty controller chip (worst case senario) : Direct flash memory read required by an expert required such as


Hope this helps and that it is 1 or 2 as 3, 4 and 5 will cost you money.

Good luck,



Jan 01, 2011 | PQI H551 500GB 2.5" USB 2.0 Portable...

1 Answer

I have a portable HDD and the model is PQI HDD 551 i want to open it but there is not screw hole.

You have to gently pry it open with a plastic lever - it just like opening an iPod.

Dec 17, 2010 | PQI H551 500GB 2.5" USB 2.0 Portable...

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