Stuck keys SN

If you have a XO with keys that are sticking please add your serial number here: Please don't delete the pre statements so the wiki keeps the per line formatting. Thanks. --Richard

Serial Numbers

CSN747

CSN74701393 Left Alt redefined to be Left Hand. 2008-07-25. bbaston
CSN7470159C Left ctrl, alt, hand, shift. Fixed with tape. (2008-07-23)
CSN74701700 Left Alt, left Ctrl (noticed June 29, 08)
CSN74701784 CTRL (Left, intermittent beginning May 2008)
CSN747017C1 Left Ctrl (intermittent)
CSN74701957 Left CTRL, Left Shift, A, Left Alt, and Spacebar
CSN7470198A Left CTRL, SHIFT, ALT
CSN74701AD6 Left ALT and CTRL key
CSN74701D62 Left ALT and (less often but quite often) CTRL key (got worse in Jan/Feb 08 after
            receipt in Dec 07)
CSN74701F0D Right shift

CSN74702143 CTRL key randomly lites after several seconds(diagnostic test) also 
            many (12-15) other keys sometime stick randomly see discussion page 
CSN747023BF CTRL
CSN74702414 CTRL, others very intermittently
CSN74702872 Alt (happened only ONCE so far, not recurring; temp. fixed by pressing right Alt-Gr)
CSN7470319C CTRL, ALT; OK w/ xmodmap left hand workaround
CSN74703322 Left CTRL (received Dec, key started sticking Jul 2008)
CSN7470337C Left CTRL (repaired with electrical tape, works fine so far)
CSN7470350B Left CTRL, Left ALT
CSN747033B6 Left ALT after ~3mos; OK w/ xmodmap left hand workaround
CSN7470365F occasional CTRL key, only started Apr 27 (been using daily since Nov)
CSN7470366E Left Alt (works okay two thirds of the time)

CSN748

CSN748001EC Left CTRL, shift, and alt keys
CSN74800265 Down Arrow, Enter, A
CSN748002BA Left ALT and CTRL
CSN74800414 Left ALT, erase/backspace (not confirmed)
CSN74800723 Left CTRL
CSH74800786 CTRL, Left ALT
CSN74800B94 CTRL and Left ALT intermittently stuck since purchase
CSN74800C4D CTRL
CSN74800E09 Left ALT and CTRL key
CSN74800E35 Left CTRL key
CSN74800E7D Left Alt, later Left Hand (after xmodmap left hand workaround worked).
CSN74800F96 Left CTRL, resolved by remapping to the left grab key (G1G1 unit, rcvd Dec 2007, problem developed in June 2008)

CSN748010C5 Left CTRL
CSN74801114 Left Alt intermittent - tape fix unsuccessful, but will try again
CSN7480115D Left ALT key
CSN748012AB CTRL key
CSN74801395 CTRL, Left Alt
CSN748015DD CTRL & Left ALT
CSN74801683 Intermittent: Left CTRL, left Alt, sometimes most of left 1/4 of keyboard
CSN748017E6 Ctrl (problem started may 08; started using computer 1/08)
CSN748018B2 CTRL, Left ALT fixed with packaging tape trick
CSN748018F8 Left Alt key (g1g1 machine, received 12/07, problem 5/08)
CSN7480190A CTRL (so far)
CSN748019C1 Many Keyboard Keys intermittently stick or do not respond.  Erase and arrow keys do not always respond.
CSN74801ADA Left CTRL, Right grab
CSN74801B19 Left Alt after 1.5 months, Left CTRL after 3 months
CSN74801B4C Left ALT and CTRL key
CSN74801CF2 Left CTRL (intermittent)
CSN74801D04 Left Alt

CSN74802529 Left Alt, left Ctrl
CSN748026C5 Left Alt, Ctrl
CSN74802713 Left Alt, left fn, left left shift, left cntrl
CSN74802B7C CTRL, TAB?
CSN748028E0 CTRL, left HAND, ALT
CSN74802B5D Left CTRL, occasional X, and other keys stick randomly
CSN74802D2E Left Alt sticks, and Left Alt registers keypress when spacebar is pressed
CSN74802DDB Left Grab
CSN74802EB3 Left Alt, occasionally left Ctrl, and possibly several others as well.  
            Started 05/22; used almost daily since 12/25/2007 with no problems until 05/22
CSN74802F13 Left CTRL, intermittent, pulling on the key helps

CSN74803006 CTRL
CSN7480307C Left CTRL (started in beginning of May, intermittently)
CSN74803094 CTRL, Left ALT fixed for 3 weeks by "cleaning keyboard", then CTRL key stuck again
CSN74803359 occasional CTRL and A - pulling the CTRL key helped, as did dis-/reassembly, 
            but not permanently
CSN748039F4 Left ALT key  - I have three units and i THINK that this is the only one acting up
            actual kids in the family, and i look into that this weekend.
CSN74803B05 The left CTRL and likely the left ALT key  because the membrane split.
CSN74803B7F Left ALT and CTRL key
CSN74803ED1 Left CTRL, fixed with disassembly and cleaning
CSN748041F7 Left CTRL (bought in Nov 2007, problem developed June 08)
CSN74804791 left alt key
CSN74804904 Left Alt
CSN74804963 CTRL Key & Left ALT - appeared within ~3 weeks. remapped, but then Right Hand Key 
            started acting up
CSN748057BF Left Alt, Left Fn, Space?, Alt Gr
CSH74805834 Left CTRL, rubbing helps, disassembly and cleaning helped for two weeks 

CSN749

CSN749001BF Left CTRL, Left Alt.  Now unuseable :(
CSN74900135 Left CTRL (sometimes), Left Alt (all the time); can be 'unstuck' with /very/ slight continuous pressure on L-Alt but impossible to use as such . . .
CSN74900168 CTRL key
CSN749005F3 Left Alt (mainly triggered when pressing one of: fn, left-grab, space, left-shift,
            ctrl, a,s,d,f,z,x,c,v)
CSN74900A9F CTRL key, keyboard membrane torn
CSN74900BAB very sticky CTRL. Occasional: O, K, ", Q, +, down arrow, Z, erase, slider. 
            Directional pad make erase and slider sticky.
CSN74901A9B Ctrl -- it's back... (6/01/08)
CSN74901C55 Left Alt, CTRL
CSN74901F1B Left Alt key

CSN7490257B Left Alt, fixed with disassembly/tape procedure
CSN74902869 Left CTRL ALT and hand key.  not fixed by cleaning.  most keys in center 
            don't work now.
CSN74902A33 CTRL
CSN74902D14 Left ALT
CSN74902DE0 CTRL
CSN74902E1A Left CRTL sticking . Seems to be triggered by pressing A; can sometimes 
            unstick by pressing A. Fixed on reboot, but re-occurs.
CSN74902FB2 Left ALT key, alt.gr key
CSN7490315E Left CTRL
CSN7490341B CTRL, ALT, Shift
CSN74903405 CTRL key
CSN7490350B Left CRTL key
CSN749036F0 Left Alt,  key
CSN749038A2 Left Alt
CSN7490393E Left CTRL and shift
CSN749039CE Left Alt
CSN74903A7F Left ALT and Left shift keys

CSN750+

CSN75000128 CTRL key
CSN7500023E Left Alt, and Left Hand occasionally
CSN750004AF Left control and erase keys
CSN75000512  occasional CTRL key
CSN75000516 Left CTRL Only fixed on reboot
CSN75000960 Ctrl key (see DISCUSSION)
CSN75000CA9 Left Ctrl key(shift, tab seem to send ctrl_l codes) 
CSN750010CA Left CTRL, left alt, down and right buttons
CSN75001276 Left CTRL
CSN750016BD Left ALT
CSN75001C15 CTRL key
CSN75001D7D Left ALT, CTRL key
CSN750024C4 Left CTRL (is a right one?)

Other

T355C31002507   Q key (intermittent)
SHF80600BE8   ALT keys (intermittent)

+6 RMA machines gathered back @ 1CC over the past months

More Info:

Recently some posts have been taken and twisted a bit in various blogs and slashdot in to indicate that the keyboard failures are "widespread". As of September 2008, fewer than 150 reports of intermittent keyboard failures have been filed (above).

Richard Smith says :

I would like to clarify what I see as incorrect info about the failure rates of the OLPC keyboard. Please re-post this info however you think best.

OLPC does not have evidence that the keyboard failures are widespread like the blog posts I've seen indicate. The overall RMA return rate of all XO problems combined is less than 1%. Verified keyboard problems are a small part of that.

Correlating the RMA data to the actual failure rate of the keyboard is a bit more difficult because many people with the problem have discovered it outside of the 30 day RMA window. Its also hard to get a good estimate of how many unique users there are in the forums that reported keyboard problems.

There has not been a rash of reports from our other deployments so we believe that the problem was primarily in the early production runs. The first shipment of G1G1 machines were part of the early manufacturing runs.

The manufacturers of the keyboard have worked with OLPC to make some changes to the internal construction of the keyboard. We think these changes have helped with the sticky keys issue, and they have been rolled into the current keyboard production.

If indeed the problem is more widespread, OLPC needs more accurate data on the failure rate. OLPC invites the community to help.

Instructions

If you currently have an XO with a sticky key then please add your serial number to this wiki page and what key(s) appear to be sticking.

Please don't add a lot of extra info.

A simple one line post entry will be fine. I don't need e-mail addresses or long problem descriptions. If you really have to say something more than oneline you can always post to this page's DISCUSSION & add *pls see TalkPage to the end of your statement above.

If you are running a joyride release, you can find your XO's serial number by hovering over your XO person in the center of the Home screen and clicking on "About this XO." Or you can remove the XO battery and read the CSN or SHF number from the barcode attached to the XO.