diff --git a/misc/debug_tools/acrn_crashlog/Makefile b/misc/debug_tools/acrn_crashlog/Makefile
index 479ee4686..1b166c9f1 100644
--- a/misc/debug_tools/acrn_crashlog/Makefile
+++ b/misc/debug_tools/acrn_crashlog/Makefile
@@ -71,13 +71,6 @@ ifeq ($(strip $(LIB_EXIST)),lsystemd)
 	EXTRA_LIBS := -lsystemd
 endif
 
-PKG_CONFIG := $(shell export PKG_CONFIG_PATH=$(PKG_CONFIG_PATH); \
-	pkg-config --libs libtelemetry)
-LIB_EXIST := $(findstring ltelemetry, $(PKG_CONFIG))
-ifeq ($(strip $(LIB_EXIST)),ltelemetry)
-        CFLAGS  += -DHAVE_TELEMETRICS_CLIENT
-        EXTRA_LIBS += -ltelemetry
-endif
 export CFLAGS
 export LDFLAGS
 export EXTRA_LIBS
@@ -109,13 +102,9 @@ install:
 	@install -d $(DESTDIR)$(datadir)/acrn/crashlog
 	@install -p -D -m 0644 data/40-watchdog.conf $(DESTDIR)$(datadir)/acrn/crashlog
 	@install -p -D -m 0644 data/80-coredump.conf $(DESTDIR)$(datadir)/acrn/crashlog
-	@install -d $(DESTDIR)$(datadir)/defaults/telemetrics/
-	@install -p -D -m 0644 data/acrnprobe.xml $(DESTDIR)$(datadir)/defaults/telemetrics/
 	@install -d $(DESTDIR)$(systemd_unitdir)/system/
 	@install -p -D -m 0644 data/acrnprobe.service $(DESTDIR)$(systemd_unitdir)/system/
 	@install -p -D -m 0644 data/usercrash.service $(DESTDIR)$(systemd_unitdir)/system/
-	@install -d $(DESTDIR)$(libdir)/tmpfiles.d
-	@install -p -D -m 0644 data/acrn-crashlog-dirs.conf $(DESTDIR)$(libdir)/tmpfiles.d/
 
 .PHONY:uninstall
 uninstall:
@@ -144,15 +133,9 @@ uninstall:
 	@if [ -e "$(DESTDIR)$(datadir)/acrn/crashlog/80-coredump.conf" ];then \
 		$(RM) $(DESTDIR)$(datadir)/acrn/crashlog/80-coredump.conf; \
 	fi
-	@if [ -e "$(DESTDIR)$(datadir)/defaults/telemetrics/acrnprobe.xml" ];then \
-		$(RM) $(DESTDIR)$(datadir)/defaults/telemetrics/acrnprobe.xml; \
-	fi
 	@if [ -e "$(DESTDIR)$(systemd_unitdir)/system/acrnprobe.service" ];then \
 		$(RM) $(DESTDIR)$(systemd_unitdir)/system/acrnprobe.service; \
 	fi
 	@if [ -e "$(DESTDIR)$(systemd_unitdir)/system/usercrash.service" ];then \
 		$(RM) $(DESTDIR)$(systemd_unitdir)/system/usercrash.service; \
 	fi
-	@if [ -e "$(DESTDIR)$(libdir)/tmpfiles.d/acrn-crashlog-dirs.conf" ];then \
-		$(RM) $(DESTDIR)$(libdir)/tmpfiles.d/acrn-crashlog-dirs.conf; \
-	fi
diff --git a/misc/debug_tools/acrn_crashlog/README.rst b/misc/debug_tools/acrn_crashlog/README.rst
index e571d2139..998ba318a 100644
--- a/misc/debug_tools/acrn_crashlog/README.rst
+++ b/misc/debug_tools/acrn_crashlog/README.rst
@@ -25,7 +25,6 @@ The ``ACRN-Crashlog`` tool depends on the following libraries
 - OpenSSL
 - libxml2
 - systemd
-- telemetrics-client-dev (optional, detected at build time)
 - libblkid
 - e2fsprogs
 
@@ -75,22 +74,10 @@ Then it will show:
 .. code-block:: console
 
    ... Backup core pattern to /var/log/crashlog/default_core_pattern
-   '/usr/share/defaults/telemetrics/telemetrics.conf' ->
-   '/etc/telemetrics/telemetrics.conf'
-   ... Set server_delivery_enabled=false in /etc/telemetrics/telemetrics.conf
-   ... Set record_retention_enabled=true in /etc/telemetrics/telemetrics.conf
    '/usr/share/acrn/crashlog/40-watchdog.conf' ->
    '/etc/systemd/system.conf.d/40-watchdog.conf'
    '/usr/share/acrn/crashlog/80-coredump.conf' ->
    '/etc/sysctl.d/80-coredump.conf'
-   Created symlink /etc/systemd/system/hprobe.timer -> /dev/null.
-   Created symlink /etc/systemd/system/telemd-update-trigger.service -> /dev/null.
-   Created symlink /etc/systemd/system/pstore-clean.service -> /dev/null.
-   Created symlink /etc/systemd/system/pstore-probe.service -> /dev/null.
-   Created symlink /etc/systemd/system/oops-probe.service -> /dev/null.
-   Created symlink /etc/systemd/system/klogscanner.service -> /dev/null.
-   Created symlink /etc/systemd/system/journal-probe.service -> /dev/null.
-   Created symlink /etc/systemd/system/bert-probe.service -> /dev/null.
    Created symlink /etc/systemd/system/multi-user.target.wants/acrnprobe.service -> /usr/lib/systemd/system/acrnprobe.service.
    Created symlink /etc/systemd/system/multi-user.target.wants/usercrash.service -> /usr/lib/systemd/system/usercrash.service.
    *** Please reboot your system. ***
@@ -113,18 +100,8 @@ Then it will show:
 
    Removed /etc/systemd/system/multi-user.target.wants/acrnprobe.service.
    Removed /etc/systemd/system/multi-user.target.wants/usercrash.service.
-   Removed /etc/systemd/system/hprobe.timer.
-   Removed /etc/systemd/system/telemd-update-trigger.service.
-   Removed /etc/systemd/system/pstore-clean.service.
-   Removed /etc/systemd/system/pstore-probe.service.
-   Removed /etc/systemd/system/oops-probe.service.
-   Removed /etc/systemd/system/klogscanner.service.
-   Removed /etc/systemd/system/journal-probe.service.
-   Removed /etc/systemd/system/bert-probe.service.
    removed '/etc/sysctl.d/80-coredump.conf'
    removed '/etc/systemd/system.conf.d/40-watchdog.conf'
-   ... Set server_delivery_enabled=true in /etc/telemetrics/telemetrics.conf
-   ... Set record_retention_enabled=false in /etc/telemetrics/telemetrics.conf
    *** Please reboot your system. ***
 
 Follow the hints to reboot the system:
@@ -143,47 +120,17 @@ It will show the status of the related services like:
 
 .. code-block:: console
 
-   telemprobd : active
-   telempostd : active
    acrnprobe  : inactive
    usercrash  : inactive
 
 Usage
 *****
 
-The ``acrnprobe`` tool can work in two ways according to the existence of
-telemetrics-client on the system:
+The ``acrnprobe`` tool provides ``history_event`` (under
+``/var/log/crashlog/history_event``) to record ACRN-related events and
+crash information.
 
-1. If telemetrics-client doesn't exist on the system, ``acrnprobe`` provides
-   ``history_event`` (under ``/var/log/crashlog/history_event``) to manage the
-   crash and events records on the platform. But in this case, the records
-   can't be delivered to the backend.
-
-2. If telemetrics-client exists on the system, ``acrnprobe`` works as a probe
-   of the telemetrics-client: it runs as a daemon autostarted when the system
-   boots, and sends the crashlog path to the telemetrics-client that records
-   events of interest and reports them to the backend using ``telemd`` the
-   telemetrics daemon. The workflow of ``acrnprobe`` and
-   telemetrics-client is shown in :numref:`crashlog-workflow`:
-
-.. graphviz:: images/crashlog-workflow.dot
-   :name: crashlog-workflow
-   :align: center
-   :caption: acrnprobe and telemetrics-client workflow
-
-
-Crashlog can be retrieved with ``telem_journal`` command:
-
-.. code-block:: none
-
-   $ telem_journal -i
-
-.. note::
-
-   For more details of telemetrics, please refer the `telemetrics-client`_ and
-   `telemetrics-backend`_ website.
-
-``ACRN-Crashlog`` also provides a tool ``debugger`` to dump the specific
+``ACRN-Crashlog`` also provides a tool called ``debugger`` to dump specific
 process information:
 
 .. code-block:: none
@@ -241,6 +188,3 @@ userspace. It works in Client/Server model. Server is autostarted, and client is
 configured in ``core_pattern`` or ``coredump-wrapper``, which will be
 triggered once crash occurs in userspace.
 For more detail on ``usercrash``, please refer :ref:`usercrash_doc`.
-
-.. _`telemetrics-client`: https://github.com/clearlinux/telemetrics-client
-.. _`telemetrics-backend`: https://github.com/clearlinux/telemetrics-backend
diff --git a/misc/debug_tools/acrn_crashlog/acrnprobe/sender.c b/misc/debug_tools/acrn_crashlog/acrnprobe/sender.c
index f6ab05c98..5a5ccbfa1 100644
--- a/misc/debug_tools/acrn_crashlog/acrnprobe/sender.c
+++ b/misc/debug_tools/acrn_crashlog/acrnprobe/sender.c
@@ -25,14 +25,6 @@
 #include "log_sys.h"
 #include "loop.h"
 
-#ifdef HAVE_TELEMETRICS_CLIENT
-#include "telemetry.h"
-
-#define CRASH_SEVERITY 4
-#define INFO_SEVERITY 2
-
-#endif
-
 static int crashlog_check_space(void)
 {
 	struct sender_t *crashlog = get_sender_by_name("crashlog");
@@ -216,93 +208,6 @@ static void get_log_by_type(const char *despath, const struct log_t *log,
 	if (log->deletesource && !strcmp("true", log->deletesource))
 		remove(srcpath);
 }
-#ifdef HAVE_TELEMETRICS_CLIENT
-static int telemd_send_data(char *payload, char *eventid, uint32_t severity,
-				char *class)
-{
-	int res;
-	struct telem_ref *handle = NULL;
-	const uint32_t version = 1;
-
-	res = tm_create_record(&handle, severity, class, version);
-	if (res < 0) {
-		LOGE("failed to create record: %s\n",
-		     strerror(-res));
-		goto fail;
-	}
-
-	/* eventid with 32 character length */
-	if (eventid) {
-		res = tm_set_event_id(handle, eventid);
-		if (res < 0) {
-			LOGE("failed to set eventid: %s\n", strerror(-res));
-			goto free;
-		}
-	}
-
-	res = tm_set_payload(handle, payload);
-	if (res < 0) {
-		LOGE("failed to set payload: %s\n", strerror(-res));
-		goto free;
-	}
-
-	res = tm_send_record(handle);
-	if (res < 0) {
-		LOGE("failed to send record: %s\n", strerror(-res));
-		goto free;
-	}
-
-	tm_free_record(handle);
-	return 0;
-
-free:
-	tm_free_record(handle);
-fail:
-	return -1;
-}
-
-static void telemd_get_log(const char *dir, char *eventid,
-				uint32_t severity, char *class)
-{
-	char *files[512];
-	char *msg;
-	int count;
-	int i;
-
-	if (!dir)
-		goto send_nologs;
-
-	/* send logs */
-	count = lsdir(dir, files, ARRAY_SIZE(files));
-	if (count < 0) {
-		LOGE("lsdir (%s) failed, error (%s)\n", dir, strerror(-count));
-		return;
-	}
-
-	if (count > 2) {
-		for (i = 0; i < count; i++) {
-			if (strstr(files[i], "/.") || strstr(files[i], "/.."))
-				continue;
-			telemd_send_data(files[i], eventid, severity, class);
-		}
-		while (count > 0)
-			free(files[--count]);
-		return;
-	} else if (count == 2) {
-		while (count > 0)
-			free(files[--count]);
-	}
-
-send_nologs:
-	if (asprintf(&msg, "no logs provided, check probe's log.") == -1) {
-		LOGE("failed to generate msg, out of memory\n");
-		return;
-	}
-
-	telemd_send_data(msg, eventid, severity, class);
-	free(msg);
-}
-#endif
 
 static void crashlog_get_log(struct log_t *log, void *data)
 {
@@ -369,325 +274,6 @@ static void crashlog_get_log(struct log_t *log, void *data)
 		LOGW("get (%s) spend %ds\n", log->name, spent);
 }
 
-#ifdef HAVE_TELEMETRICS_CLIENT
-static void telemd_send_crash(struct event_t *e, char *eventid)
-{
-	struct crash_t *crash;
-	char *class;
-	int ret;
-
-	crash = (struct crash_t *)e->private;
-
-	ret = asprintf(&class, "clearlinux/crash/%s", crash->name);
-	if (ret < 0) {
-		LOGE("compute string failed, out of memory\n");
-		return;
-	}
-
-	telemd_get_log(e->dir, eventid, CRASH_SEVERITY, class);
-	free(class);
-}
-
-static void telemd_send_info(struct event_t *e, char *eventid)
-{
-	struct info_t *info;
-	char *class;
-	int ret;
-
-	info = (struct info_t *)e->private;
-	ret = asprintf(&class, "clearlinux/info/%s", info->name);
-	if (ret < 0) {
-		LOGE("compute string failed, out of memory\n");
-		return;
-	}
-
-	telemd_get_log(e->dir, eventid, INFO_SEVERITY, class);
-	free(class);
-}
-
-static void telemd_send_uptime(void)
-{
-	struct sender_t *telemd = get_sender_by_name("telemd");
-	struct uptime_t *uptime;
-	char *class;
-	char boot_time[UPTIME_SIZE];
-	int hours;
-	int ret;
-	static int uptime_hours;
-	static int loop_uptime_event = 1;
-
-	if (!telemd)
-		return;
-
-	ret = get_uptime_string(boot_time, &hours);
-	if (ret < 0) {
-		LOGE("cannot get uptime - %s\n", strerror(-ret));
-		return;
-	}
-	uptime = telemd->uptime;
-	if (cfg_atoi(uptime->eventhours, uptime->eventhours_len,
-		     &uptime_hours) == -1)
-		return;
-
-	if (hours / uptime_hours >= loop_uptime_event) {
-		char *content;
-
-		loop_uptime_event = (hours / uptime_hours) + 1;
-		ret = asprintf(&class, "clearlinux/uptime/%s", boot_time);
-		if (ret < 0) {
-			LOGE("compute string failed, out of memory\n");
-			return;
-		}
-
-		ret = asprintf(&content, "system boot time: %s", boot_time);
-		if (ret < 0) {
-			LOGE("compute string failed, out of memory\n");
-			free(class);
-			return;
-		}
-
-		telemd_send_data(content, NULL, INFO_SEVERITY, class);
-		free(class);
-		free(content);
-	}
-}
-
-static void telemd_send_reboot(char *eventid)
-{
-	struct sender_t *telemd = get_sender_by_name("telemd");
-	char *class;
-	char reason[REBOOT_REASON_SIZE];
-	int ret;
-
-	if (!telemd)
-		return;
-
-	if (swupdated(telemd)) {
-		char *content;
-
-		ret = asprintf(&class, "clearlinux/swupdate/-");
-		if (ret < 0) {
-			LOGE("compute string failed, out of memory\n");
-			return;
-		}
-
-		ret = asprintf(&content, "system update to: %s",
-			 gbuildversion);
-		if (ret < 0) {
-			LOGE("compute string failed, out of memory\n");
-			free(class);
-			return;
-		}
-
-		telemd_send_data(content, NULL, INFO_SEVERITY, class);
-		free(class);
-		free(content);
-	}
-
-	read_startupreason(reason, sizeof(reason));
-	ret = asprintf(&class, "clearlinux/reboot/%s", reason);
-	if (ret < 0) {
-		LOGE("compute string failed, out of memory\n");
-		return;
-	}
-
-	telemd_send_data("reboot", eventid, INFO_SEVERITY, class);
-	free(class);
-}
-
-static void telemd_send_vmevent(struct event_t *e, char *eventid, char *data,
-				size_t dlen)
-{
-	char *vmkey;
-	char *event;
-	char *type;
-	char *rest;
-	size_t klen;
-	size_t elen;
-	size_t tlen;
-	size_t rlen;
-	char *vmlogpath = NULL;
-	char *class;
-	char *files[512];
-	int count;
-	int i;
-	uint32_t severity;
-	char *log;
-	int res;
-	struct vm_event_t *vme;
-
-	vmkey = strings_ind(data, dlen, 0, &klen);
-	event = strings_ind(data, dlen, 1, &elen);
-	type = strings_ind(data, dlen, 2, &tlen);
-	rest = strings_ind(data, dlen, 3, &rlen);
-	if (!vmkey || !event || !type || !rest)
-		return;
-
-	if (strcmp(event, "CRASH") == 0)
-		severity = CRASH_SEVERITY;
-	else
-		severity = INFO_SEVERITY;
-
-	/* if line contains log, fill vmlogpath */
-	log = strstr(rest, ANDROID_LOGS_DIR);
-	if (log) {
-		const char *logf;
-
-		if (!e->dir)
-			return;
-		logf = log + sizeof(ANDROID_LOGS_DIR) - 1;
-		if (asprintf(&vmlogpath, "%s/%s", e->dir, logf) == -1)
-			return;
-	}
-
-	vme = (struct vm_event_t *)e->private;
-	res = asprintf(&class, "%s/%s/%s", vme->vm->name, event, type);
-	if (res < 0) {
-		LOGE("compute string failed, out of memory\n");
-		goto free_vmlogpath;
-	}
-
-	if (!vmlogpath) {
-		telemd_send_data("vm event doesn't contain logs", eventid,
-				 severity, class);
-		goto free_class;
-	}
-
-	/* send logs */
-	count = lsdir(vmlogpath, files, ARRAY_SIZE(files));
-	if (count > 2) {
-		for (i = 0; i < count; i++) {
-			if (!strstr(files[i], "/.") &&
-			    !strstr(files[i], "/..")) {
-				telemd_send_data(files[i], eventid, severity,
-						 class);
-			}
-		}
-	} else if (count < 0) {
-		LOGE("lsdir (%s) failed, error (%s)\n", vmlogpath,
-		     strerror(-count));
-	} else {
-		LOGE("get (%d) files in (%s) ???\n", count, vmlogpath);
-	}
-
-	while (count > 0)
-		free(files[--count]);
-
-free_class:
-	free(class);
-free_vmlogpath:
-	if (vmlogpath)
-		free(vmlogpath);
-
-	return;
-}
-
-static int telemd_new_event(struct event_t *e, char *result, size_t rsize,
-				char **eid)
-{
-	struct crash_t *crash;
-	struct info_t *info;
-	struct vm_event_t *vme;
-	char *key;
-	const char *e_subtype = NULL;
-	size_t e_subtype_len = 0;
-	const char *estr = etype_str[e->event_type];
-	size_t eslen = strlen(etype_str[e->event_type]);
-
-	switch (e->event_type) {
-	case CRASH:
-		crash = (struct crash_t *)e->private;
-		e_subtype = crash->name;
-		e_subtype_len = crash->name_len;
-		break;
-	case INFO:
-		info = (struct info_t *)e->private;
-		e_subtype = info->name;
-		e_subtype_len = info->name_len;
-		break;
-	case UPTIME:
-		return 0;
-	case REBOOT:
-		break;
-	case VM:
-		vme = (struct vm_event_t *)e->private;
-		estr = vme->vm->name;
-		eslen = vme->vm->name_len;
-		e_subtype = strings_ind(result, rsize, 2, &e_subtype_len);
-		if (!e_subtype)
-			return -1;
-		break;
-	default:
-		break;
-	}
-
-	key = generate_event_id(estr, eslen, e_subtype, e_subtype_len,
-				KEY_LONG);
-	if (!key) {
-		LOGE("failed to generate event id, %s\n", strerror(errno));
-		return -1;
-	}
-	*eid = key;
-	return 0;
-}
-
-static int telemd_event_analyze(struct event_t *e, char **result,
-				size_t *rsize)
-{
-	if (e->event_type == VM) {
-		struct vm_event_t *vme = (struct vm_event_t *)e->private;
-
-		if (android_event_analyze(vme->vm_msg, vme->vm_msg_len,
-					  result, rsize) == -1) {
-			LOGE("failed to analyze android event\n");
-			return -1;
-		}
-	}
-	return 0;
-}
-
-static void telemd_send(struct event_t *e)
-{
-	size_t rsize;
-	char *result = NULL;
-	char *eid = NULL;
-
-	if (telemd_event_analyze(e, &result, &rsize) == -1) {
-		LOGE("failed to analyze event\n");
-		return;
-	}
-	if (telemd_new_event(e, result, rsize, &eid) == -1) {
-		LOGE("failed to request resouce\n");
-		if (result)
-			free(result);
-		return;
-	}
-	switch (e->event_type) {
-	case CRASH:
-		telemd_send_crash(e, eid);
-		break;
-	case INFO:
-		telemd_send_info(e, eid);
-		break;
-	case UPTIME:
-		telemd_send_uptime();
-		break;
-	case REBOOT:
-		telemd_send_reboot(eid);
-		break;
-	case VM:
-		telemd_send_vmevent(e, eid, result, rsize);
-		break;
-	default:
-		LOGE("unsupoorted event type %d\n", e->event_type);
-	}
-	if (eid)
-		free(eid);
-	if (result)
-		free(result);
-}
-#endif
-
 static void crashlog_send_crash(struct event_t *e, char *eid,
 				char *data, size_t dlen)
 {
@@ -1110,11 +696,6 @@ int init_sender(void)
 				LOGE("failed to init outdir size\n");
 				return -1;
 			}
-
-#ifdef HAVE_TELEMETRICS_CLIENT
-		} else if (!strcmp(sender->name, "telemd")) {
-			sender->send = telemd_send;
-#endif
 		}
 	}
 
diff --git a/misc/debug_tools/acrn_crashlog/data/acrn-crashlog-dirs.conf b/misc/debug_tools/acrn_crashlog/data/acrn-crashlog-dirs.conf
deleted file mode 100644
index 6f0730eef..000000000
--- a/misc/debug_tools/acrn_crashlog/data/acrn-crashlog-dirs.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-#Type Path          Mode UID       GID      Age   Argument
-d /var/log/crashlog 0750 telemetry telemetry -
diff --git a/misc/debug_tools/acrn_crashlog/data/crashlogctl b/misc/debug_tools/acrn_crashlog/data/crashlogctl
index ab84fe766..fe4bd14f0 100755
--- a/misc/debug_tools/acrn_crashlog/data/crashlogctl
+++ b/misc/debug_tools/acrn_crashlog/data/crashlogctl
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (C) <2018> Intel Corporation
+# Copyright (C) 2021 Intel Corporation
 # SPDX-License-Identifier: BSD-3-Clause
 #
 # crashlogctl is part of acrn-hypervisor.
@@ -11,37 +11,14 @@ declare -a CRASHLOG_SERVICES=(
   usercrash.service
 )
 
-declare -a TELEMD_SERVICES=(
-  hprobe.timer
-  telemd-update-trigger.service
-  pstore-clean.service
-  pstore-probe.service
-  oops-probe.service
-  klogscanner.service
-  journal-probe.service
-  bert-probe.service
-)
-
 SCRIPT="$0"
-TELEM_DIR=/etc/telemetrics
-OPT_OUT_FILE=${TELEM_DIR}/opt-out
-USER_CONF_FILE=${TELEM_DIR}/telemetrics.conf
-SYSTEM_CONF_FILE=/usr/share/defaults/telemetrics/telemetrics.conf
 CRASHLOG_SHARE_DIR=/usr/share/acrn/crashlog
 CRASHLOG_SYSTEM_CONF=${CRASHLOG_SHARE_DIR}/40-watchdog.conf
 CRASHLOG_SYSCTL_CONF=${CRASHLOG_SHARE_DIR}/80-coredump.conf
 CRASHLOG_VAR_DIR=/var/log/crashlog
 CRASHLOG_CORE_BACKUP=${CRASHLOG_VAR_DIR}/default_core_pattern
-CRASHLOG_S_D_BACKUP=${CRASHLOG_VAR_DIR}/server_delivery_enabled
-CRASHLOG_R_R_BACKUP=${CRASHLOG_VAR_DIR}/record_retention_enabled
-CRASHLOG_WRK_DIRS_CONF=/usr/lib/tmpfiles.d/acrn-crashlog-dirs.conf
 CORE_PATTERN_CONF="/proc/sys/kernel/core_pattern"
 
-create_work_dirs() {
-  # Creates dirs if missing, adjust ownership if exists
-  systemd-tmpfiles --create ${CRASHLOG_WRK_DIRS_CONF}
-}
-
 exit_ok() {
   echo "$1" > /dev/stderr
   exit 0
@@ -66,9 +43,6 @@ for_each_service() {
 }
 
 crashlog_enable() {
-  [ -f $OPT_OUT_FILE ] && exit_err "Opt out is enabled. Cannot start services."
-  # trigger systemd-tmpfiles work dirs creation
-  create_work_dirs
 
   # backup the default core_pattern
   if [ -f ${CRASHLOG_CORE_BACKUP} ]
@@ -79,36 +53,12 @@ crashlog_enable() {
       notice "... Backup core pattern to ${CRASHLOG_CORE_BACKUP}"
   fi
 
-  # copy the configure file
-  if [ ! -f ${USER_CONF_FILE} ]
-  then
-      mkdir -p ${TELEM_DIR}
-      cp -v ${SYSTEM_CONF_FILE} ${USER_CONF_FILE}
-  fi
-
-  # modify the telemetics configure file
-  if grep --quiet server_delivery_enabled=true ${USER_CONF_FILE}
-  then
-      sed -i "s/server_delivery_enabled=true/server_delivery_enabled=false/g"   ${USER_CONF_FILE}
-      echo 1 > ${CRASHLOG_S_D_BACKUP}
-      notice "... Set server_delivery_enabled=false in ${USER_CONF_FILE}"
-  fi
-
-  if grep --quiet record_retention_enabled=false ${USER_CONF_FILE}
-  then
-      sed -i "s/record_retention_enabled=false/record_retention_enabled=true/g" ${USER_CONF_FILE}
-      echo 1 > ${CRASHLOG_R_R_BACKUP}
-      notice "... Set record_retention_enabled=true in ${USER_CONF_FILE}"
-  fi
-
   # Copy watchdog and coredump conf files
   mkdir -p /etc/systemd/system.conf.d
   cp -v ${CRASHLOG_SYSTEM_CONF} /etc/systemd/system.conf.d
   mkdir -p /etc/sysctl.d
   cp -v ${CRASHLOG_SYSCTL_CONF} /etc/sysctl.d
 
-  # Mask telemd services
-  for_each_service "mask" ${TELEMD_SERVICES[@]}
   # Enable chrashlog services
   for_each_service "enable" ${CRASHLOG_SERVICES[@]}
 
@@ -118,27 +68,10 @@ crashlog_enable() {
 crashlog_disable() {
   # Disable chrashlog services
   for_each_service "disable" ${CRASHLOG_SERVICES[@]}
-  # Unmask telemd services
-  for_each_service "unmask"  ${TELEMD_SERVICES[@]}
 
   rm -v /etc/sysctl.d/${CRASHLOG_SYSCTL_CONF##*/}
   rm -v /etc/systemd/system.conf.d/${CRASHLOG_SYSTEM_CONF##*/}
 
-  # modify the telemetics configure file
-  if [ -f ${CRASHLOG_S_D_BACKUP} ]
-  then
-      sed -i "s/server_delivery_enabled=false/server_delivery_enabled=true/g"   ${USER_CONF_FILE}
-      rm -f ${CRASHLOG_S_D_BACKUP}
-      notice "... Set server_delivery_enabled=true in ${USER_CONF_FILE}"
-  fi
-
-  if [ -f ${CRASHLOG_R_R_BACKUP} ]
-  then
-      sed -i "s/record_retention_enabled=true/record_retention_enabled=false/g" ${USER_CONF_FILE}
-      rm -f ${CRASHLOG_R_R_BACKUP}
-      notice "... Set record_retention_enabled=false in ${USER_CONF_FILE}"
-  fi
-
   rm -f ${CRASHLOG_CORE_BACKUP}
 
   exit_ok "*** Please reboot your system. ***"
@@ -146,8 +79,6 @@ crashlog_disable() {
 
 crashlog_is_active() {
   # check only activation units
-  echo "telemprobd :" $(systemctl is-active telemprobd.socket)
-  echo "telempostd :" $(systemctl is-active telempostd.path)
   echo "acrnprobe  :" $(systemctl is-active acrnprobe.service)
   echo "usercrash  :" $(systemctl is-active usercrash.service)
 }
diff --git a/misc/debug_tools/acrn_crashlog/images/crashlog-workflow.dot b/misc/debug_tools/acrn_crashlog/images/crashlog-workflow.dot
deleted file mode 100644
index 075d44a2e..000000000
--- a/misc/debug_tools/acrn_crashlog/images/crashlog-workflow.dot
+++ /dev/null
@@ -1,8 +0,0 @@
-digraph {
-   bgcolor=transparent; rankdir=LR;
-   node [shape="rectangle" style="filled" color="lightblue"]
-   edge [fontsize="12" fontcolor="blue"]
-
-   "acrnprobe" -> "telemetrics-client" [label="crashlog\npath"]
-   "telemetrics-client" -> "backend"   [label="log\ncontent"]
-}