
You’ve just read or heard that your phone is due for an update—maybe just bug fixes, or possibly a big version upgrade. But your phone claims there’s nothing doing. Dial this keypad combination to force a “checkin” and possible upgrade.
If there’s no update available for your phone from your carrier, then this trick won’t magically compile and distribute one, of course. But there can be a lag between when a carrier makes an update available and when your phone checks in to see if it’s available—even if you hit the Settings menu, choose About phone, and click the “Check for system updates” option. Sometimes it works, and sometimes it doesn’t—but it doesn’t hurt.
To get your phone into the queue right away, dial *#*#checkin#*#*, substituting the dial pad numbers for the letters. I used it on a Nexus S to pick up a bug-fixing upgrade, and users of other Android phones on different networks, like the Droid Eris on Verizon, have seen some success with it. If you’ve had success with this trick, or felt like you were a lab rat pushing a lever, let us know either way in the comments.
Nexus S gets its first update over the air [Engadget]




















Peter Simpson
Wednesday, December 29, 2010 at 12:51 PMDidn’t work. Telstra HTC Desire.
“Connection problem or invalid MMI code.”
Either there’s no warning if there’s no update or it’s not supported in Australia/on this device.
Jim
Wednesday, December 29, 2010 at 2:58 PMGetting Invalid MMI for Australia (Vodafone)
Slinky
Wednesday, December 29, 2010 at 5:02 PMUsing HTD Desire HD (Vodafone)
Checkin succeeded but still awaiting response…
treblid
Wednesday, December 29, 2010 at 9:09 PMUsing HTC DHD with Vodafone prepaid (phone imported), already got 2.2.1 last week. When entering the code there is a check-in succeeded msg. Tried the same code with desire z (2.2) and nothing happened at all.
Jarryd
Wednesday, December 29, 2010 at 11:57 PMCheckin succeeded*
Simon Kingston
Thursday, December 30, 2010 at 3:58 AMI have HTC Desire on Telstra and checkin was successful.
People getting the ‘invalid MMI code’ message didn’t put the final * in. Don’t go by the picture in this article, it is incomplete, read the full code in the article.
Shikyo
Thursday, December 30, 2010 at 10:07 AMFor those getting the “Connection problem or MMI Code” message, make sure you enter in the full line in the text and not from the picture. The picture leaves out an * at the end.
Checkin Succeeded here on my Samsung Galaxy Tab but nothing else.
kakyoin01
Thursday, December 30, 2010 at 5:06 PMAus Vodafone Milestone CM6 Froyo
Checking Succeeded … but nothing happens
Darryl
Thursday, December 30, 2010 at 6:52 PMI typed in the code to my phone and when I input the last *, the screen cleared and wouldn’t check for the update.
I have a LG GT540GO prepay via Optus. I hate this phone anyway. It only has Android 1.6 and it’s crap.
Greg
Thursday, December 30, 2010 at 8:52 PMThis comment has been deemed inappropriate and has been deleted
Mitchell
Friday, December 31, 2010 at 12:21 AMAus 3 Hutchinson
HTC Magic running CM6 Froyo
“Checking Succeeded” but like most other people nothing happened past that..
DANIE
Sunday, January 23, 2011 at 5:36 AMHi you guys!Any of you clever okes got a code for the sound thats to soft ??Please