Philips Electronics North America Corporation: Philips HeartStart MRx Monitor/Defibrillator; M3535A, M3536A, M3536J, M3536M, M3536MC, M3536M2, M3536M4, M3536M5, M3536M6. For use for the termination of ventricular tachycardia and ventricular fibrillation.

Recall number

Z-0320-2016

Recalling firm

Philips Electronics North America Corporation

Product

Philips HeartStart MRx Monitor/Defibrillator; M3535A, M3536A, M3536J, M3536M, M3536MC, M3536M2, M3536M4, M3536M5, M3536M6. For use for the termination of ventricular tachycardia and ventricular fibrillation.

Status

Terminated

Initiated

2015-10-14

Posted

2015-11-20

Terminated

2018-09-13

Reason

The following MRx software issue has been identified: MRx model M3535A with software version F.03.06 and earlier, and model M3536A with version T.00.05 and earlier may stop the automated Ready-For-Use (RFU) test in an abnormal state when the device is turned off.

Root cause

Software design

Action

On 10/14/2015, Philips sent an Urgent Field Safety Notice to each known affected customer. The Urgent Medical Device Correction notification/ Field Safety Notice informs customers of the issue, identifies details of the units affected, gives instructions on actions to be taken by the customer and identifies what action Philips plans to take to remedy the issue. Philips will provide a software upgrade for M3535A (software version F.03.07 or higher) and M3536A (software version T.00.06 or higher) to correct this issue. A software upgrade will be provided free of charge for all affected products. A Philips Healthcare representative will contact customers with affected devices to arrange for installation of the upgrades. Philips is asking customers to follow the Action to be Taken by Customer/User section of the Urgent Medical Device Correction notification/Field Safety Notice: All MRx users should be informed that if the pattern appears, they can continue to use the device. Once the MRx is turned on, the pattern will disappear and the device will function normally in all monitoring and therapy modes.

Quantity

81,161

Distribution

Worldwide Distribution - US (nationwide) including Puerto Rico, and the countries of AFGHANISTAN, ALBANIA, ARGENTINA, ARUBA, AUSTRALIA, AUSTRIA, AZERBAIJAN, BAHRAIN, BANGLADESH, BELGIUM, BOLIVIA, BOSNIA AND HERZEGOVINA, BRAZIL, BRUNEI DARUSSALAM, BULGARIA, CAMBODIA, CHILE, CHINA, COLOMBIA, COSTA RICA, CROATIA (local name: Hrvatska), CYPRUS, CZECH REPUBLIC, DENMARK, ECUADOR, EGYPT, EL SALVADOR, ESTONIA, ETHIOPIA, FINLAND, FRANCE, GERMANY, GHANA, GREECE, GUADELOUPE, HONG KONG, Hungary, ICELAND, India, INDONESIA, ISLAMIC REPUBLIC OF IRAN, Iraq, IRELAND, ISRAEL, ITALY, JAPAN, Jordan, KAZAKHSTAN, KENYA, REPUBLIC OF KOREA, KUWAIT, LAOS, LATVIA, LEBANON, LIBYAN ARAB JAMAHIRIYA, LITHUANIA, LUXEMBOURG, MACAU, MACEDONIA, MALAYSIA, MALTA, Mauritius, Mexico, MONGOLIA, MOROCCO, MOZAMBIQUE, Myanmar (Burma), NAMIBIA, NEPAL, NETHERLANDS, NETHERLANDS ANTILLES, NEW CALEDONIA, NEW ZEALAND, NICARAGUA, NIGERIA, NORWAY, OMAN, PAKISTAN, State of Palestine, PANAMA, PAPUA NEW GUINEA, PARAGUAY, PERU, PHILIPPINES, POLAND, PORTUGAL, QATAR, REUNION, ROMANIA, RUSSIAN FEDERATION, SAUDI ARABIA, SERBIA, SINGAPORE, SLOVENIA, SOUTH, AFRICA, SPAIN, SRI, LANKA, SWEDEN, SWITZERLAND, TAIWAN, UNITED REPUBLIC OF TANZANIA, THAILAND, TRINIDAD AND TOBAGO, TUNISIA, TURKEY, TURKMENISTAN, UGANDA, UKRAINE, UNITED, ARAB, EMIRATES, UNITED KINGDOM, UZBEKISTAN, VENEZUELA, VIETNAM, and YEMEN

Lot, serial or model codes

Devices manufactured prior to June 4, 2015. Affected serial numbers range from US00100100 - US00587045.

510(k) numbers

["K031187","K040404","K051134","K061707","K062233"]

PMA numbers

not on file

Product code

MKJ

Firm FEI

1218950

Firm city

Andover

Firm state

MA

Firm country

not on file

Cite as

FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28

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