BC-6500D

Valid for BC-6500D / BC-6900D

Versions
The different versions can be identified by serial number. A serial number is in the format MMYY xxxx.

Example: 0415A 1234 means the unit was produced in April of 2015. From the list below, that means that this example is of version 3.

Version (E) –  from 0717E New LCD showing 3 rows of text in both PU and BU,

1Only transmit if PU is old version, and BU is new version

2Transmission works but cannot turn off out-of-range alarm through parent unit's LCD display

3 Only transmit if BU is old version, and PU is new version

4 Need to push three times on baby unit's "M" button to pair with parent unit

5 Transmission works but cannot use TIMER function, TIMER will only show on BU display. Reset on BU only works by holding TIMER button for 2 sec. Short press on TIMER button (BU) will not work.

Table of function changes
{| border="0" cellpadding="1" cellspacing="1" class="article-table article-table-selected" style="width: 500px;" ! scope="col"|Changes in Function ! scope="col" |Serial numbers ! Version
 * First launch version
 * 0513A,0713A,1013A
 * 0513A,0713A,1013A

(serial numbers that end with R is also this version)

 * A
 * Add in power save feature in PU
 * 0114A,0614A,1014A
 * 0114A,0614A,1014A

(serial numbers that end with RN is also this version)
Low temperature alert -18 - +15∘ C 0115A,0415A,0715A, 0815A,0915A,1015A, 0316A,0716A,1016A, 1116A
 * B
 * Parent unit: LCD changed to two rows showing text. Press M to switch off out-of-range function, out-of-range automatically activates itself when baby unit is switched on. High-Low temperature alert of each baby unit can be set individually. Range: High temperature alert 0 - 49∘C,
 * Parent unit: LCD changed to two rows showing text. Press M to switch off out-of-range function, out-of-range automatically activates itself when baby unit is switched on. High-Low temperature alert of each baby unit can be set individually. Range: High temperature alert 0 - 49∘C,

(Repaired : 1217C/1217B XXXX R also this version)
Battery capacity changed from 1300mAh to 1450mAh When volume level set to zero, MUTE start flashing, short press M button to confirm MUTE.
 * C
 * New LCD shows battery status in %. PU/BU will not show battery % status while charging and switched OFF.
 * New LCD shows battery status in %. PU/BU will not show battery % status while charging and switched OFF.
 * 0117A,0417A,0617D
 * D
 * Add in charging indication when power is off.
 * Add in charging indication when power is off.

Added mounting kit in package (BC-6x00D). Change LCD to show more alphabet in a row.
 * 0717E
 * E
 * Change circuitry design to extend battery stand-by-time to 200 hours stand-by-time.
 * Change circuitry design to extend battery stand-by-time to 200 hours stand-by-time.

Add in sleep TIMER function/change PAGE button to TIMER button Mic sens adjustable from PU According to the new CE requirement, the Li battery used in electronic devices need to be incorporated with PTC and NTC circuitry and there are 3 wire coming out from battery. Besides, the battery need to be covered up with a V0 fire retardant sleeve (see attached photo). As a result, the battery will be more safe and less chance to become overheated and melt the cabinet.
 * 0118F
 * F
 * Modified timer function : PU will record time once BU is switched off (only when the time lapse is over 1 min)
 * 0418G, 0718G
 * G
 * Change low temperature limit allowable selection range to -19° to +25°C.
 * Change low temperature limit allowable selection range to -19° to +25°C.
 * Change low temperature limit allowable selection range to -19° to +25°C.
 * 0119H
 * H
 * Charging time reduce by 40%. AC adapter change to 5V 1A (1000mAh), independent USB cable. Charging current increased from 350A to 700A.
 * 0519I
 * I
 * New batteries from new supplier.
 * 0919J
 * J
 * Change firmware such that battery consumption appear more linear/compatible with 10th version
 * 0221K
 * K
 * Changed to 3-wire batteries.
 * 0221K
 * K
 * Changed to 3-wire batteries.
 * Changed to 3-wire batteries.
 * 0421L
 * L
 * Add 3 colour sticker in battery compartment and battery/compatible with L version
 * 0721M
 * M
 * }
 * }

Special notes
Enter testing mode of RX - hold + button while switching the unit ON

Resume by switching OFF and ON again - make sure the + is not stuck

BC-6500D out-of-range alarm (on parent unit) is automatically activated when turning ON (again) a (paired) baby unit where the out-of-range have been switched off by usting +/- buttons on PU (to avoid the alarm to sound when not using the unit).