XO B4: Difference between revisions

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Beta test model BTest-4, also known as B4.
Beta test model BTest-4, also known as B4. Several thousand of these were made, to provide laptops for early trials.


See [[Hardware_specification#Beta_Test_4_Systems_.28BTest-4.2C_or_B4.29|Beta Test 4 Systems]]
See [[Hardware_specification#Beta_Test_4_Systems_.28BTest-4.2C_or_B4.29|Beta Test 4 Systems]]
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== Identification ==
== Identification ==


* rubber antenna "ears"
* dimples only on battery cover; no texturing of bumpers and other surfaces
* labels under battery include "B4 - TEST SAMPLE",
* labels under battery include "B4 - TEST SAMPLE",
* hinge white,
* hinge white,

Revision as of 05:30, 30 December 2008

Beta test model BTest-4, also known as B4. Several thousand of these were made, to provide laptops for early trials.

See Beta Test 4 Systems

Identification

  • rubber antenna "ears"
  • dimples only on battery cover; no texturing of bumpers and other surfaces
  • labels under battery include "B4 - TEST SAMPLE",
  • hinge white,
  • no keyboard LEDs.

Restrictions

  • electrical system defects, while running Q2D05 firmware, see #1835, #1752, #4476, #4479,
    • occasional crashes, made worse by suspend and resume, if battery low (#1835),
    • WLAN USB hangs, made worse by suspend and resume, (#1752, #4476),
    • DCON power cycling crash, (#4479),
    • rare crashes during suspend and resume, (#1835),

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