if wifi dongle already plug-in in raspberry pi 2 Model B then not Boot Raspberry

Dear

if attached LAN cable, mouse/keyboard in raspberry pi2 Model B(raspbian jessie Operating system ) then raspberry pi 2 boot properly and work.

if attached wifi Dongle, mouse/keyboard in raspberry pi2 Model B then unable to boot raspberry pi 2

if i attached wifi dongle on raspberry after boot then wifi work properly

i don't want to insert remove wifi dongle daily basis for boot raspberry pi 2

if there any solution plz share with me

gadget.iom over 10 years ago

When you say "unable to boot" what are the symptoms?
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medi over 10 years ago in reply to gadget.iom

if already inserted wifi Dongle in raspberry pi 2 and power-on raspberry then unable to boot raspberry pi 2
if i remove wifi dongle and power-on of raspberry pi 2 then boot properly
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balearicdynamics over 10 years ago in reply to medi

It is very probable this depends on a power problem. You see the problem during boot as probably there is a current peak so the PI absorb more than the usual power. Try with a 2A power supply and this problem may disappear, at least I had a similar problem solved just after I have replaced the power.

Enrico
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cmelement14 over 10 years ago

I agree with Enrico. I had the same problem before and solved using a 2A power supply.
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jack.chaney56 over 10 years ago in reply to cmelement14

A way to tell if your power source is marginal, is to watch the opening screen at boot up. If there is an extra rainbow block in the upper right during the startup messages, it is a signal that the power level is low. If this is the case, any devices that are added before power on can bring the level below what is needed to provide proper switching and the power circuit will not come out of reset. A 2A is really necessary, even though the newer B2, B+ and A+ have all improved their power requirements.

Jack
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